leaf

Definition of leaf in English English dictionary: Tea leaves; A moveable panel, e.g. of a bridge or door, originally one that hinged but now also applied to other forms of movement
The train car has one single-leaf and two double-leaf doors per side.; A flat section used to extend the size of a table; Anything resembling the leaf of a plant; A sheet of any substance beaten or rolled until very thin
gold leaf.; The layer of fat supporting the kidneys of a pig (see also leaf fat); A foliage leaf or any of the many and often considerably different structures it can specialise into; The usually green and flat organ that represents the most prominent feature of most vegetative plants; A sheet of a book, magazine, etc (consisting of two pages, one on each face of the leaf); In a tree, a node that has no descendants; To produce leaves; put forth foliage; {n} a part of tree, book, table, thin plate; {v} to bear or produce leaves, to put in leaves; An aerial and lateral outgrowth from a stem which makes up the foliage of a plant Its prime function is to manufacture of food by photosynthesis It typically consists of a stalk (petiole) and a flattened blade (lamina); (f) One of the teeth of a pinion, especially when small; (Ticaret) In a decision tree, a final node that is not split into further nodes; A node not further split -- the terminal grouping -- in a classification or decision tree; > The piece of paper comprising one page on its front side (recto) and another on its back (verso); An organ of a plant typically divided into a flattened portion (the blade) and a narrow stalk (the petiole) and serving as the principal site of photosynthesis and transpiration; A special organ of vegetation in the form of a lateral outgrowth from the stem, whether appearing as a part of the foliage, or as a cotyledon, a scale, a bract, a spine, or a tendril; produce leaves, of plants; To shoot out leaves; to produce leaves; to leave; as, the trees leaf in May; look through a book or other written material; "He thumbed through the report"; "She leafed through the volume"; one of the units into which the original sheet or half sheet of paper is folded to form part of a book; each leaf consists of two pages, one on each side, either or both of which may be blank; A colored, usually green, expansion growing from the side of a stem or rootstock, in which the sap for the use of the plant is elaborated under the influence of light; one of the parts of a plant which collectively constitute its foliage; {f} flip pages, turn pages (in a book, magazine, etc.); produce leaves (of a plant or tree); one part of a book that contains two pages, the verso and the recto; n 1 an atom in a tree_1 2 a terminal node of a tree_2; Law Enforcement Agency Field a component in the Clipper Chip; the movable portion of a bascule bridge which forms the span of the structure; hinged or detachable flat section (as of a table or door); (d) A very thin plate; as, gold leaf; a page is one side of a leaf - the term leaf covers the whole leaf - both sides; Law Enforcement Access Field--of the Escrowed Encryption Standard; (e) A portion of fat lying in a separate fold or layer; The lateral organ of a grass culm, typically consisting of a sheath, blade, ligule, and auricles; A leaf is composed of two parts: the leaf's stem (petiole) and the blade The leaf is the primary tool of the plant in gathering the sun's energy for photosynthesis Compare with leaflet; (c) The movable side of a table; {i} flat and usually green structure attached to the stem or branch of a plant; foliage; petal; state of having leaves; page; layer; thin sheet of metal (especially gold or silver); hinged or movable part; extra section added to extend a table's length; An organ found in most vascular plants; it consists of a flat lamina (blade) and a petiole (stalk) Many flowering plants have additionally a pair of small stipules near the base of the petiole; If you say that you are going to turn over a new leaf, you mean that you are going to start to behave in a better or more acceptable way. He realized he was in the wrong and promised to turn over a new leaf. leaf through to turn the pages of a book quickly, without reading it properly = skim through. Any flattened, green outgrowth from the stem of a vascular plant. Leaves manufacture oxygen and glucose, which nourishes and sustains both plants and animals. Leaves and stem tissue grow from the same apical bud. A typical leaf has a broad, expanded blade (lamina), attached to the stem by a stalklike petiole. The leaf may be simple (a single blade), compound (separate leaflets), or reduced to a spine or scale. The edge (margin) may be smooth or jagged. Veins transport materials to and from the leaf tissues, radiating from the petiole through the blade. They are arranged in a netlike pattern in dicot leaves and are parallel in monocot leaves (see cotyledon). The leaf's outer layer (epidermis) protects the interior (mesophyll), whose soft-walled, unspecialized green cells (parenchyma) produce carbohydrate food by photosynthesis. In autumn the green chlorophyll pigments of deciduous leaves break down, revealing other pigment colors (yellow to red), and the leaves drop off the tree. Leaf scars that form during wound healing after the leaves drop are useful for identifying winter twigs. In conifers, evergreen needles, which are a type of leaf, persist for two or three years. leaf insect walking leaf leaf miner leaf footed bug; The leaves of a tree or plant are the parts that are flat, thin, and usually green. Many trees and plants lose their leaves in the winter and grow new leaves in the spring. In the garden, the leaves of the horse chestnut had already fallen The Japanese maple that stands across the drive had just come into leaf. see also -leaved; The single paper in a book, consisting of two pages, one page being on the front or recto of the leaf, the other page being on the back or verso of the leaf In the making of an octavo format book each printed sheet, after folding and cutting, yields eight leaves, or sixteen pages By the way, in a properly laid out book, the recto of the leaf is always an ODD numbered page, and the verso is an EVEN numbered page; Something which is like a leaf in being wide and thin and having a flat surface, or in being attached to a larger body by one edge or end; as : (a) A part of a book or folded sheet containing two pages upon its opposite sides; A plant organ whose function in general is to conduct photosynthesis Usually composed of a stalk (petiole) and a broad portion (blade) In general, a leaf has a bud at its base Compare "leaflet"; If you take a leaf from someone's book you behave in the same way as them because you want to be like that person or as successful as they are. Maybe we should take a leaf out of Branson's book. It's easy to see how he became a billionaire; One of the units into which the original sheet or half sheet of paper, parchment, etc is folded to form part of a book, pamphlet, journal, etc ; each leaf consists of two pages, one on each side, either or both may be blank; A vegetative organ which, when complete, consists of a flat blade, a petiole or stalk, and (usually two) small leafy appendages at the base of the petiole; One of the units into which the original sheet or half sheet of paper, parchment, etc , is folded to form part of a book; Metallic leaf is paper-thin sheets of metals For example, gold, silver, platinum, and copper are rolled or pounded into metallic leaf which can be applied to surfaces; A leaf is one of the pieces of paper of which a book is made. He flattened the wrappers and put them between the leaves of his book. = page; n (ME leef fr OE leaf, akin to OHG loub, leaf, foliage) a lateral outgrowth from a stem that constitutes part of the foliage of a plant and functions primarily in food manufacture by photosynthesis; n The thin, usually flat, green parts that grow on a tree or other plant Leaves are essential organs of most plants and use the carbon dioxide of the air in which they live and light from the sun to carry on an important process called photosyntesis; the main organ of photosynthesis and transpiration in higher plants; turn over pages; "leaf through a book"; "leaf a manuscript"; One of the individual units (FOLIO or singleton) making up a BIFOLIUM, QUIRE, or book A leaf possesses a front and a back, described as recto and verso, and may contain writing or decoration on one or both sides, or neither As a term of codicological description, it is referred to as a leaf, regardless of whether it is foliated or paginated As a term of bibliographical reference, it is referred to as a folio if it has been foliated (with the recto or verso sides specified), or each of its sides is referred to individually as a page if it has been paginated; One of a number of folds (each containing two pages) which comprises a book or manuscript; hinged or detachable flat section (as of a table or door) a sheet of any written or printed material (especially in a manuscript or book) the main organ of photosynthesis and transpiration in higher plants produce leaves, of plants turn over pages; "leaf through a book"; "leaf a manuscript; a sheet of any written or printed material (especially in a manuscript or book); A sheet of paper or parchment each side of which is referred to as a page [RAD]; The leaf of a folding fan refers to the pleated arc made with radiating folds, of silk, paper, skin The leaf of a cockade is a long rectangular strip, folded regularly along its width; the-resulting "concertina" is held together along one side either by sewing or gluing and is fixed to the fan so that when open, the free edge opens out into a circle (or part circle) The leaf of a brisé can be formed by the application of other materials to a standard brisé or monture, i e feathers or panels of paper or silk as in a "Jenny Lind" fan (see Textiles and Extravagance); (b) A side, division, or part, that slides or is hinged, as of window shutters, folding doors, etc
leaf beetle: Any of very many brightly-coloured beetles, of the family Chrysomelidae, that feed on plant leaves
leaf beetles: plural form of leaf beetle
leaf blower: A motorised garden tool that propels air out of a nozzle to move leaves and other debris
leaf blowers: plural form of leaf blower
leaf cacti: plural form of leaf cactus
leaf cactus: Either of two genera in the family Cactaceae: Epiphyllum and Pereskia
leaf casting: A process in which damaged paper is repaired by means of wetting the old paper in a cast and concurrently aging pulp to the damaged part or parts
leaf curl: A plant disease, caused by certain fungi or viruses, characterized by curling of leaves
leaf fat: The layers of fat that support the kidneys of a pig
leaf frog: Any tree frog of the subfamily Phyllomedusinae
leaf frogs: plural form of leaf frog
leaf gap: A gap or break in the central cylinder of vascular tissue within a plant's stem, caused by the extension of the tissue as a leaf trace
leaf gaps: plural form of leaf gap
leaf green: A bright green like the usual colour of leaves
leaf green: Alternative spelling of leaf-green
leaf insertion: In liverworts, the angle and orientation of the plane of the leaves with respect to the axis of the stem
The Chilean Amphijubula Schust. (Schuster, 1970a) which has the facies of a small Frullania and agrees with Frullania in leaf insertion and branching, has a nontiered seta with 16 epidermal cell rows surrounding 4 inner rows.
leaf lard: White lard made from fresh, clean, sound leaf (abdominal) fat of swine, reasonably free of blood, free of foreign odors and tastes, and having not more than set maxima of {{|}}, peroxide, moisture, volatile matter, and insoluble impurities
leaf miner: An insect larva that lives within leaf tissue
leaf mold: Decomposed or composted remains of leaves
leaf mold: Soil consisting principally of layers of decomposed leaves
leaf peeper: A tree sightseer, who enjoys to observe the color change in their leaves, especially in the autumn
Perched on a peak amidst the leaf peeper's paradise of Western North Carolina, Fire Mountain Inn is a secluded retreat with close ties to the land.
leaf peepers: plural form of leaf peeper
leaf protein: A protein found in leaves extracted for use as a food for humans
leaf protein concentrate: Concentrated leaf protein used as a food for human beings
leaf proteins: plural form of leaf protein
leaf roller: The caterpillar of a tortrix moth, a pest that infests plants and rolls up their leaves
leaf sheath: A structure at the base of a leaf's petiole that partly surrounds or protect the stem or another organ that it subtends
leaf spot: Any of various fungal or bacterial diseases of plants that cause blemishes on their leaves
leaf spring: A spring in the form of a curved length of steel, used in the suspension of wheeled vehicles
leaf storms: plural form of leaf storm
leaf through: To turn the pages of (a book) rapidly reading short sections at random
leaf trace: An extension of vascular tissue from a plant's stem into a nearby leaf, resulting in a leaf gap in the plant's stele
leaf traces: plural form of leaf trace
leaf turtle: The Asian leaf turtle
leaf warbler: A small insectivorous bird of the genus Phylloscopus
leaf-beetle: Alternative spelling of leaf beetle
leaf-cutter ant: Any of the 41 species of ants in the genera Atta and Acromyrmex, that cut fragments from leaves and takes them to its colony's nest
leaf-cutter ants: plural form of leaf-cutter ant
leaf-cutter bee: A bee of the family Megachilidae that cuts fragments from leaves and uses them to build its nest
leaf-cutting: That cuts leaves; used in the names of various insects (see [[#Derived terms|Derived terms]] below)
leaf-cutting ant: A leaf-cutter ant
leaf-cutting bee: A leaf-cutter bee
leaf-footed: Having feet that resemble leaves
leaf-green: Having leaf green as its colour
leaf-green: Alternative spelling of leaf green
leaf-hopper: Any insect of the family Cicadellidae
leaf-miner: Alternative spelling of leaf miner
leaf-nosed: Having an projection resembling a leaf on the nose
leaf-nosed bat: A bat of the family Phyllostomidae, having a pointed projection on the snout
leaf-peeper: Alternative spelling of leaf peeper
leaf-roller: Alternative spelling of leaf roller
leaf-rolling: Describing a leaf roller
leaf-scale: A scale on the stem of a plant that turns into a leaf
leaf-silver: silver leaf
leaf-spot: Alternative spelling of leaf spot
leaf-spring: Alternative spelling of leaf spring
leaf-warbler: Alternative spelling of leaf warbler
leaf folder: Any of several moths whose larvae make shelter cases by folding the leaves of plants
leaf roller: A moth or other insect whose larvae roll up the leaves of plants which they feed on
Leaf River: A river, about 290 km (180 mi) long, of southeast Mississippi flowing generally south to Hattiesburg
leaf beet: chard: beet lacking swollen root; grown as a vegetable for its edible leaves and stalks
leaf beet: chard: long succulent whitish stalks with large green leaves
leaf beetle: brightly colored beetle that feeds on plant leaves; larvae infest roots and stems
leaf blade: The expanded and flattened portion of a leaf
leaf blade: – the thin, usually flat part of leaf excluding the petiole
leaf blade: especially a leaf of grass or the broad portion of a leaf as distinct from the petiole
leaf blade: The broadened flat region of the leaf (lamina) in which the majority of photosynthesis occurs
leaf blight: any blight causing a browning and falling of the leaves of a plant
leaf bud: a bud from which leaves (but not flowers) develop
leaf bug: small bright-colored insect that feeds on plant juices
leaf butterfly: Any of several butterflies of the genus Kallima, having wings that resemble leaves
leaf cast: a disease of conifers causing the needles to fall
leaf disease: any plant disease localized in the foliage
leaf fat: Layered fat that encloses the kidneys of a hog, used in making lard
leaf fat: fat lining the abdomen and kidneys in hogs which is used to make lard
leaf gap: A break in the vascular tissue of a stem above the point of attachment of a leaf trace
leaf insect: Any of various chiefly Asian insects of the family Phyllidae that resemble leaves in color and form. Also called walking leaf. or walking leaf Any of about 25 species of flat green insects (family Phylliidae) with a leaflike appearance. Leaf insects, which range from India to the Fiji Islands, are about 2.3 in. (60 mm) long. The female has large leathery forewings (tegmina) that lie edge to edge on the abdomen and resemble, in their vein pattern, the midrib and veins in a leaf. The hind wings have no function. The male has small tegmina and ample, non-leaflike, functional hind wings. The newly hatched young are reddish, but become green after feeding on leaves
leaf lard: High-grade lard made from leaf fat
leaf lettuce: lettuce with loosely curled leaves that do not form a compact head distinguished by leaves having curled or incised leaves forming a loose rosette that does not develop into a compact head
leaf miner: any of various small moths or dipterous flies whose larvae burrow into and feed on leaf tissue especially of the family Gracilariidae
leaf miner: Any of numerous small flies and moths that in the larval stage dig into and feed on leaf tissue. Any of various insect larvae that live and feed within a leaf, including caterpillars, sawfly larvae, beetle and weevil grubs, and dipteran maggots. Most leaf-miner burrows or tunnels are either thin, winding, whitish trails or broad, whitish or brownish blotches. Though leaf miners do not usually cause injury, they mar the appearance of ornamental trees and shrubs. One method of control is to remove and burn infested leaves; spraying with nicotine solutions or dusting with insecticides is effective only when the adults are emerging
leaf mold: Humus or compost consisting of decomposed leaves and other organic material
leaf mold: soil composed mainly of decaying leaves
leaf mould: leaf mould in AM, use leaf mold Leaf mould is a substance consisting of decayed leaves that is used to improve the soil. leaf mold dead decaying leaves that improve soil
leaf primordium: A lateral outgrowth from the apical meristem that develops into a leaf
leaf roller: Any of several moths of the family Tortricidae whose larvae make nests of rolled leaves and silk
leaf roller: moth whose larvae form nests by rolling and tying leaves with spun silk
leaf scar: The mark left on a twig after a leaf falls
leaf scorch: plant disease causing a burned or scorched appearance of the foliage
leaf shape: any of the various shape that leaves of plants can assume
leaf spot: Any of various plant diseases resulting in well-defined necrotic areas on the leaves
leaf spring: long narrow spring consisting of several layers of metal springs bracketed together
leaf spring: n. A composite spring, used especially in automotive suspensions, consisting of several layers of flexible metallic strips joined to act as a single unit
leaf springs: (Otomotiv) A series of steel plates, placed one atop the other, which bend flexibly to absorb the bumps and shocks of driving. Most often used in the rear suspensions of trucks and some sport-utility vehicles. See also suspension system
leaf through: If you leaf through something such as a book or magazine, you turn the pages without reading or looking at them very carefully. Most patients derive enjoyment from leafing through old picture albums
leaf trace: A strand of vascular tissue that extends between the vascular bundle of a stem and a leaf
leaf-cutter: leaf-cutting bee: bee that cuts rounded pieces from leaves and flowers to line its nest
leaf-cutting bee: bee that cuts rounded pieces from leaves and flowers to line its nest
leaf-footed bug: large sap-sucking bug with leaflike expansions on the legs
leaf-nosed snake: any of various pale blotched snakes with a blunt snout of southwestern North America
leather leaf: A shrub (Chamaedaphne calyculata) found in the cool temperate and subarctic regions of the Northern Hemisphere
lettuce leaf: An Australian one hundred dollar bank note, due to its green colour
lettuce leaf: A leaf of lettuce
Maple Leaf: The official bullion gold coin of Canada
Maple Leaf: The flag of Canada
apple leaf midge: A pest of apple trees, Dasineura mali
ash-leaf: A leaf of an ash tree; used attributively in various terms (see [[#Derived terms|Derived terms]] below)
banana leaf: A leaf of the banana plant
bay leaf: A herb derived from a shrub of the family Lauraceae
betel leaf: The leaf of the betel, used for its medicinal properties
bible leaf: A Eurasian perennial herb that has flowers that are yellow and buttonlike
blue-sided leaf frog: A species of tree frog native to Costa Rica, scientific name Agalychnis annae, noted for the blue stripes running down both of its sides
blue-sided leaf frogs: plural form of blue-sided leaf frog
dining leaf: a leaf of the banana plant, used as a plate to serve food in South Asian countries
drop-leaf table: A table having a hinged section that can be fixed in a horizontal position to extend the table and is folded down when not needed
end-leaf: A blank sheet at the beginning or end of a book
fern-leaf: The leaf of a fern; used attributively in various terms (see [[#Derived terms|Derived terms]] below)
fig leaf: Anything used to conceal something undesirable or that one does not want to be discovered
fig leaf: A representation of leaf of a fig plant used to cover the genitals of a nude figure in a work of art (alluding to Genesis iii 7, in which Adam and Eve use fig leaves to hide their nakedness)
fig leaf: A leaf of the fig plant
fig-leaf: Alternative spelling of fig leaf
foliage leaf: An unspecialized leaf, composed of a flat lamina and often a petiole, which is the primary seat of photosynthesis and transpiration in plants that have them
four-leaf: Of a plant, having four leaves
four-leaf clover: An uncommon variation of the clover, having four leaves instead of the usual three
four-leaf clover: A bringer of good luck
four-leaf clovers: plural form of four-leaf clover
gold leaf: gold beaten into a thin sheet
ivy-leaf: The leaf of the ivy
lace-leaf: A plant (Aponogeton madagascariensis or Aponogeton fenestralis; formerly Ouvirandra fenestralis) whose leaves have little tissue between the veins
leafed: Having a leaf or leaves; used mainly in combination with another word to form adjectives describing the number, form, colour, etc., of leaves
leafed: Simple past tense and past participle of leaf
leaves: plural form of leaf
leaves: plural form of leave
loose-leaf: Having pages that are not attached and are designed to be removed
All the pages fell out of my loose-leaf notebook.
lower leaf zone: That part of a leaf and petiole that grows from a basal meristem
maple leaf: A national symbol of Canada
maple leaf: The leaf of the maple tree
maple-leaf: Attributive form of maple leaf, used in the name of various plants the leaves of which resemble those of the maple
maple-leaf: Alternative spelling of maple leaf
palm-leaf: The leaf of the palm, used attributively in various terms (see [[#Derived terms|Derived terms]] below)
seed leaf: first leaf/leaves a seed plant's embryo develops
sesame leaf: a leaf of the sesame plant
sesame leaf: a leaf of the perilla plant
specific leaf area: a measure of leaf thickness, calculated by dividing the area of a portion of a leaf by the dry weight of that same portion of leaf
specific leaf areas: plural form of specific leaf area
stem and leaf: A stemplot
stem-and-leaf: Alternative spelling of stem and leaf
strawberry leaf: The symbol of a duchy, featuring a representation of leaves of the strawberry plant
strawberry leaf: By extension, a duke
sweet leaf: A tropical shrub (Sauropus androgynous) the leaves of which are eaten as a vegetable
sweet leaf: Same as sweetleaf
take a leaf out of someone's book: To adopt an idea or practice of another person
tea leaf: A thief
tea leaf: A dried fragment of a leaf of the tea plant used in making the drink tea
tea-leaf: Alternative spelling of tea leaf
true leaf: Any leaves of a seed plant other than the cotyledons
true leaf: Any leaf containing vascular tissue
true-leaf: Attributive form of true leaf, noun

leaf

Hyphenation

Leaf

Turkish pronunciation

lif

Synonyms

blade, bract, flag, foliole, frond, leaflet, needle, pad, petal, petiole, scale, stalk, stipule, folio, paper

Pronunciation

/ˈlēf/ /ˈliːf/

Etymology

[ lEf ] (noun.) before 12th century. Middle English leef, from Old English lēaf, from Proto-Germanic *lauƀan (compare Dutch loof, German Laub), from Proto-Indo-European *leup- 'to peel, break off' (compare Irish luibh 'herb', Latin liber 'bast; book', Lithuanian lúoba 'bark', Albanian labë 'rind').