zinc

تعريف zinc في الإنجليزية الإنجليزية القاموس.: a chemical element (symbol Zn) with an atomic number of 30; To electroplate with zinc; To coat with sunblock incorporating zinc oxide; {n} a metal of a bluish white color used with copper to form brass, pinch beck; This trace mineral is a cofactor in more than 20 enzyme functions and an insulin constituent Required for protein synthesis and collagen formation, enhances immunity and wound healing, regulates taste and growth, detoxifies alcohol in the liver, regulates Vitamin E concentration in the blood, and increases Vitamin A absorption- A daily external supply is required Deficiency symptoms include anemia, loss of taste and smell, thin and peeling nails with white spots, acne, fatigue, hair loss, impaired night vision, impotence and sterility, high cholesterol, decreased protein synthesis, memory impairment, prostate troubles, recurrent colds and flu, skin lesions, and slow wound healing Pregnancy increases deficiency risk; a mineral required for protein synthesis & collagen formation Also promotes a healthy immune system & aids in digestion & metabolism; Measured in mg/L or ppm; {f} cover with zinc, plate with zinc; To coat with zinc; to galvanize; A bluish-white brittle metal Occurs naturally in soil, water and foods Second only to iron as a metal found in the human body; Bluish-white hard metal occuring in various minerals such as sphalerite; It is not easily oxidized in moist air, and hence is used for sheeting, coating galvanized iron, etc; Zinc is a bluish silver metal, ductile when very pure but brittle otherwise. It forms brass (with copper) and many other alloys. Its major use is in galvanizing iron, steel, and other metals. Zinc is an essential trace element, particularly in red blood cells; in snails, it corresponds to iron in the blood of vertebrates. Zinc oxide is used as a pigment, ultraviolet light absorber (to prevent sunburn), dietary supplement and seed treatment, and photoconductor. Zinc's many other compounds (in which it has valence 2 or, rarely, 1) are used in industrial and consumer applications, including as pesticides, pigments, mordants (see dye), fluxes, and wood preservatives; (NC020) Helps maintain a healthy body Needed for the production of thyroid hormones which are vital to growth, development and the control of our metabolic rate; a metallic trace element that plays a role in Imo cell maturation and activation, and in wound healing Deficiency leads to slow healing and possible mental symptoms; Optional on nutrition label unless added as a nutrient supplement A mineral Helps form protein in the body Assists in wound healing, blood formation and general growth and maintenance of all tissues Part of many enzymes and insulin; {i} (Zn) metallic chemical element (Chemistry); What it's good for: Essential for normal growth, development and immunity Helps maintain skin, hair and bones Keeps reproductive organs functioning and helps in the perception of taste and the ability to see at night Where you get it: Beef, poultry, liver, oysters, eggs and dairy products RDA: Between 12 to 15 mg for women and 15 mg for men; An abundant element of the magnesium-cadmium group, extracted principally from the minerals zinc blende, smithsonite, calamine, and franklinite, as an easily fusible bluish white metal, which is malleable, especially when heated; Atomic weight 64; A bluish-white, lustrous metallic element that is brittle at room temperature but malleable with heating It is used to form a wide variety of alloys including brass, bronze, various solders, and nickel silver, in galvanizing iron and other metals, for electric fuses, anodes, and meter cases, and in roofing, gutters, flashings, edge metals and also for various household objects Atomic number 30; atomic weight 65 37; melting point 419 4 °C; boiling point 907 °C; specific gravity 7 133 (25 °C); valence 2; It is used in making brass, britannia, and other alloys, and is also largely consumed in electric batteries; Chemical symbol Zn Bluish-white, lustrous metal derived from ores that also contain lead, silver, copper, germanium, and cadmium Essential nutrient element in soils and animals Pure metal is malleable and ductile even at ordinary temperature It can be electro-deposited, and is used primarily as a galvanized protective coating for steel (especially steel destined for use in construction, transportation, and electrical equipment) Its most important alloys are brass and bronze Of great importance in die casting, although new ZA (zinc-aluminum) alloy is becoming a major force in die-casting Compounds and dusts used by agricultural, chemical, paint, and rubber industries; An essential mineral often depleted in persons with HIV Zinc is a component of many enzymes It is important in protecting cells against excess oxidation and helps immune cells mature and function Ingesting high doses of zinc can be harmful, however, because it interferes with the absorption of copper, another essential micronutrient; A metal that is found naturally in air, soil, water and foods It is used in brass alloys, bronze, die-casting alloys, galvanizing iron, fungicides, smoke bombs, pharmaceuticals, pennies, and as a protective coating for other metals Zinc in water can be dissolved or undissolved, depending on the chemical and physical properties of the local environment The dominant fate of zinc is adsorption to sediments Zinc in soil is most likely to be strongly absorbed, depending on conditions Transfer to groundwater from soil is not a dominant process The soluble forms of zinc are the most toxic forms to aquatic biota Zinc is an essential nutrient for humans, however, excessive amounts can be harmful Zinc can reduce "good cholesterol", as well as lead to various gastrointestinal disorders; Zinc is a naturally occurring inorganic chemical considered a pollutant of concern in the LaMP It is most commonly used as a protective coating for other metals; a bluish-white lustrous metallic element; brittle at ordinary temperatures but malleable when heated; used in a wide variety of alloys and in galvanizing iron; it occurs as zinc sulphide in zinc blende; Zinc is a product of a corrosive or aggressive water that is in contact with a galvanized plumbing system Zinc can effect the taste and color of the water The EPA maximum contaminant level for zinc is 5 0 ppm; One of eight micronutrients necessary for plant health Zinc participates in chlorophyll formation, and also activates many enzymes Symptoms of zinc deficiency include chlorosis and stunted growth; Symbol Zn; Element number 30, symbol Zn, a metal (German, Zink) A bluish white ductile metal known to the ancients in brass but was not produced seperately until the 18th century Zinc is the secondary metal in the alloy brass, naval brass, alloy C28000 being 60% copper 39 2% zinc ans 2% tin Zinc is used to make hard varieties of aluminium and aluminium is used to make light strong zinc casting alloys The United States penny has been made out of copper clad zinc since 1983 Average density of zinc, 7 133 g/cm3, 2577 lbs/cuin, 445 30 lbs/cuft Los Alamos National Laboratory periodic table entry zinc mokume gane' Wood grain -->; Zinc is essential to the synthesis of DNA and RNA, of proteins, insulin and sperm The body needs zinc, too, to metabolize carbohydrates, fats, protein and alcohol; to dispose of carbon dioxide; to make good use of vitamin A More than seventy different enzymes require zinc to do their appointed work And that's not all Zinc bolsters the immune system and makes wounds heal faster It's integral to the growth and maintenance of body tissues; it plays a major role in the development of fetuses and the growth of children It even hones the palate; An ion that is a yeast nutrient but that at high levels gives a metallic taste to beer; used in some Ionization units Zinc ions can function as a bactericide; Metal Used extensively to galvanise iron to protect against rust (see corrosion) Can be toxic to fish if present in sufficient concentrations in it's free form, however this is only usually in very poorly buffered, acidic (pH<5 5) solutions; a vitamin supplement; Zinc is a bluish-white metal which is used to make other metals such as brass, or to cover other metals such as iron to stop a brown substance called rust from forming. To coat or treat with zinc; galvanize. a blue-white metal that is used to make brass and to cover and protect objects made of iron. It is a chemical element : symbol Zn (zink). Metallic chemical element, chemical symbol Zn, atomic number; An antioxidant that neutralizes free radicals and is important to the proper functioning of the body Its role in macular degeneration is unknown; (and compounds) Used as a coating on iron and steel, and in making brass metal alloys; also used as a dust in making paints and dyes Zinc may cause chronic health effects such as reproductive disorders, according to US EPA Health Assessment Documents Some studies also indicate zinc can be toxic to aquatic life
zinc chloride: The zinc salt of hydrochloric acid, ZnCl2, a white crystalline solid with a number of industrial applications
zinc finger: A structure, in some proteins, that binds to specific sequences of DNA and regulates genes
zinc oxide: An amorphous solid, ZnO, white when pure but often pale yellow, used in pigments and cosmetics
zinc pyrithione: a coordination complex of zinc
zinc blende: an ore that is the chief source of zinc; consists largely of zinc sulfide in crystalline form
zinc cadmium sulfide: cadmium sulfide containing zinc
zinc chloride: A white, water-soluble crystalline compound, ZnCl, used as a wood preservative, as a soldering flux, and for a variety of industrial purposes, including the manufacture of cements and paper parchment
zinc deficiency: a deficiency caused by inadequate zinc in the diet or by liver disease or cystic fibrosis or other diseases
zinc ointment: skim balm made from zinc and used for medicinal purposes
zinc ointment: an ointment containing zinc that is used to treat certain skin diseases
zinc ointment: A salve consisting of about 20 percent zinc oxide with beeswax or paraffin and petrolatum, used in the treatment of skin disorders
zinc oxide: oxide of zinc; a white powder used as a pigment or in cosmetics or glass or inks and in zinc ointment
zinc oxide: An amorphous white or yellowish powder, ZnO, used as a pigment, in compounding rubber, in the manufacture of plastics, and in pharmaceuticals and cosmetics. Also called Chinese white, zinc white
zinc oxide: {i} chemical compound that is used to protect and heal the skin
zinc oxide ointment: Zinc ointment
zinc sulfate: A colorless crystalline compound, ZnSOO, used medicinally as an emetic and astringent, as a fungicide, and in wood and skin preservatives. Also called white vitriol
zinc sulfate: a colorless water-soluble powder; used as a mordant or to preserve wood or for the electrodeposition of zinc
zinc sulfide: A yellow to white crystalline compound, ZnS, occurring naturally as sphalerite and wurtzite, and used as a phosphor and as a pigment in the manufacture of paper
zinc white: a white pigment used in hose paints; consists of zinc oxide
Zinc.: zincum
butter of zinc: zinc chloride
nickel-zinc battery: (Elektrik, Elektronik) The nickel-zinc battery (sometimes abbreviated "NiZn") is a type of rechargeable battery that may be used in cordless power tools, cordless telephone, digital cameras, battery operated lawn and garden tools, professional photography, flashlights, electric bike, and light electric vehicle sectors
zinced: {s} coated with zinc
zincing: The act or process of applying zinc; galvanization
zincking: The act or process of applying zinc; galvanization