A measure of absorbed radiation dose One Gray equals 100 rads, in the older terminology
United States botanist who specialized in North American flora and who was an early supporter of Darwin's theories of evolution (1810-1888) American navigator who twice circumnavigated the globe and who discovered the Columbia River (1755-1806) English poet best known for his elegy written in a country church-yard (1716-1771) turn gray; "Her hair began to gray"
In the International System of Units, the derived unit of absorbed dose of radiation (radiation absorbed by a patient); one joule of energy absorbed per kilogram of the patients mass. Symbol: Gy
horse of a light grey or whitish color gray clothing; "he was dressed in gray" a neutral achromatic color midway between white and black any organization or party whose uniforms or badges are gray; "the Confederate army was a vast gray" United States botanist who specialized in North American flora and who was an early supporter of Darwin's theories of evolution (1810-1888) American navigator who twice circumnavigated the globe and who discovered the Columbia River (1755-1806) English poet best known for his elegy written in a country church-yard (1716-1771) turn gray; "Her hair began to gray" make gray; "The painter decided to grey the sky" an achromatic color of any lightness between the extremes of black and white; "gray flannel suit"; "hair just turning gray" intermediate in character or position; "a gray area between clearly legal and strictly illegal" used to signify the Confederate forces in the Civil War (who wore gray uniforms); "a stalwart gray figure" showing characteristics of age, especially having gray or white hair; "whose beard with age is hoar"-Coleridge; "nodded his hoary head
The modern unit of radiation dosage Doses used in treatment for early breast cancer range from 45 and 65 Gray See also rad
Gray scale images retain as much of the original information from the indices as possible The original index values are scaled from 0 to 200, 100 being an NDIV value of 0, with each increase or decrease of 1 indicating an increase or decrease of 01 in the original NDVI index These data should be used when doing analysis of change over time back to index
see grey. American botanist who greatly enlarged and improved the description of North American flora and was the chief American advocate of Charles Darwin's theories. American explorer who twice circumnavigated the globe (1787-1790 and 1790-1793) and discovered Grays Harbor and the Columbia River (1792). British poet considered a forerunner of English romanticism. His most famous work is Elegy Written in a Country Churchyard (1751). The SI unit for the energy absorbed from ionizing radiation, equal to one joule per kilogram. the usual American spelling of grey. gray fox Gray Asa Gray Thomas Otis Harrison Gray Anne Gray Harvey
Unit that measures the radiation dose (Gy) International health and safety authorities have endorsed the safety of irradiation for all foods up to a dose level of 10,000 Gy (10 kGy) One gray equals one joule of energy absorbed per kilogram of food being irradiated
showing characteristics of age, especially having gray or white hair; "whose beard with age is hoar"-Coleridge; "nodded his hoary head
component replacement (GCR) A method for systematically replacing coloured inks by black ink in areas where dots of all three coloured inks are interspersed It begins by eliminating equal amounts of each ink The colour that remains is lighter, because the combination that was eliminated would have contributed a neutral gray The same neutral darkening can then be restored using black ink as a replacement GCR saves ink and can improve the quality of an image
In the computer security community, a skilled hacker who sometimes acts legally and in good will and sometimes not. They are a hybrid between "white hat" and "black hat" hackers. They hack for no personal gain, and do not have malicious intentions, but do commit crimes
Of or pertaining to working-class professions that do not involve significant manual labor, such as skilled technical professions, combining elements of blue-collar and white-collar
Vocational training reaches greater fractions of the labor force in nations like West Germany; large Japanese companies invest more heavily in job-related training for blue- and gray-collar employees than do American firms.
(Tıp, İlaç) Grey goo is a hypothetical end-of-the-world scenario involving molecular nanotechnology in which out-of-control self-replicating robots consume all living matter on Earth while building more of themselves (a scenario known as ecophagy)
(Ekonomi) A grey market or gray market also known as parallel market is the trade of a commodity through distribution channels which, while legal, are unofficial, unauthorized, or unintended by the original manufacturer. The term gray economy, however, refers to workers being paid under the table, without paying income taxes or contributing to such public services as Social Security and Medicare. It is sometimes referred to as the underground economy or "hidden economy."
Grizzled, gray-furred New World fox (Urocyon cinereoargenteus) found in forested, rocky, and brush-covered country from Canada to northern South America. Distinguished by the reddish color on its neck, ears, and legs, it grows to a length of about 20-30 in. (50-75 cm), excluding its 12-16-in. (30-40-cm) tail, and a weight of about 7-13 lbs (3-6 kg). Unlike other foxes, it commonly climbs trees. Primarily nocturnal, it takes a variety of foods, including small birds and mammals, insects, and fruits
Describes the sale of securities that have not officially been issued to firms other than the underwriting syndicate This type of market serves as a good indicator of demand for a new issue in the public market
Gray scale can be viewed as a degenerate case of pseudo color, in which case the red, green, and blue values in any given color map entry are equal, thus producing shades of gray The gray values can be changed dynamically
1 As applied to an image, composed of (discrete) shades of gray If the pixels of a gray-scale image have n bits, they may take values from zero, representing black, up to 2-1, representing white Intermediate values represent increasingly light shades of gray If n=1, the image is not called gray-scale but black-and-white (or a line drawing) 2 A range of accurately known shades of gray printed out for use in calibrating those shades on a display or printer
Generally refers to a monochrome ordering of 256 shades between black and white which are assigned to raster picture elements (pixels) according to reflected light, heat, and/or other relative intensity measurements Most common digital display option for scanned black and white orthophotos
a reflection or transmission scale of gray tones in steps from clear or white at one end to black at the other, with steps in-between showing evenly intensified series of gray tones (It is attached to the original design or copy to determine accuracy of exposure and uniformity of color separations Patches of yellow, cyan and magenta are included with the scale when photographing for color separations); also referred to as gray or step wedge
A large, tawny gray wolf (Canis lupus) that formerly occupied diverse habitats throughout northern North America and Eurasia but now lives in fewer, more limited areas because of human encroachment. Also called timber wolf
born Nov. 18, 1810, Sauquoit, N.Y., U.S. died Jan. 30, 1888, Cambridge, Mass. U.S. botanist. He received a medical degree from Fairfield Medical School, where he spent his spare time studying plant specimens. He collaborated with John Torrey (1796-1873) on Flora of North America (1838-43) and in 1842 joined the faculty at Harvard University, where he would teach until 1873. His donation of his thousands of books and plant specimens established Harvard's botany department. Gray was largely responsible for the unification of the taxonomic knowledge of the North American flora; his most widely used book, commonly called Gray's Manual (1848), remains a standard work. He was the chief early American supporter of the theories of Charles Darwin
born Oct. 8, 1765, Boston, Mass. died Oct. 28, 1848, Boston, Mass., U.S. U.S. politician. A nephew of James Otis, he practiced law and served in the Massachusetts legislature (1796-97, 1802-05), the U.S. House of Representatives (1797-1801), the state senate (1805-13, 1814-17), and the U.S. Senate (1817-22). He was later mayor of Boston (1829-32). A Federalist, he opposed the War of 1812 and was a leader of the Hartford Convention
a novel by Oscar Wilde about a beautiful young man, Dorian Gray, who has a painting of himself that he keeps in the attic (=a room under the roof) of his house. Dorian Gray's own face remains young and beautiful, but the face in the painting looks older and more ugly as Gray becomes more and more evil and immoral (1891)
an English poet whose best-known work, Elegy written in a Country Churchyard, is usually called Gray's Elegy (1716-71). born Dec. 26, 1716, London, Eng. died July 30, 1771, Cambridge, Cambridgeshire British poet. He studied and later settled at Cambridge, where he wrote poems of wistful melancholy filled with truisms phrased in striking, quotable lines. Though his output was small, he became the dominant poetic figure in his day. He is remembered especially for "An Elegy Written in a Country Church Yard" (1751), one of the best known of English lyric poems and the greatest work of the English "graveyard school." After its overwhelming success, his next two poems met a disappointing response, and he virtually ceased writing
Journalists sometimes use grey to describe things concerning old people. There was further evidence of grey consumer power last week, when Ford revealed a car designed with elderly people in mind. British politician who as prime minister (1830-1834) implemented parliamentary and social reforms, notably the abolition of slavery throughout the British Empire. Queen of England for nine days (1553). Proclaimed queen on the death of Edward VI (July 10, 1553), she was imprisoned after her short reign, replaced by the popular Mary Tudor, later Mary I, and subsequently beheaded for treason. American writer of Western adventure novels, including Riders of the Purple Sage (1912). Variant of gray. gray the colour of dark clouds, neither black nor white. De Grey River Grey Charles Grey 2nd Earl Grey Lady Jane Grey Sir Edward 3rd Baronet Grey Zane Pearl Grey
disapproval If you describe someone or something as grey, you think that they are boring and unattractive, and very similar to other things or other people. little grey men in suits. + greyness grey·ness Journalists are frustrated by his apparent greyness
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