Gray


Gray
/gray/, n.
1. Asa /ay"seuh/, 1810-88, U.S. botanist.
2. Thomas, 1716-71, English poet.

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(as used in expressions)
Gray Asa
Gray Thomas
Otis Harrison Gray
Anne Gray Harvey

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      unit of absorbed dose of ionizing radiation, defined in the 1980s by the International Commission on Radiation Units and Measurements. One gray is equal approximately to the absorbed dose delivered when the energy per unit mass imparted to matter by ionizing radiation is one joule per kilogram. As a unit of measure, the gray is coherent with the units of measure in the International System of Units (SI). The gray replaced the rad, which was not coherent with the SI system. One gray equals 100 rads.

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Universalium. 2010.

Synonyms:

Look at other dictionaries:

  • gray — gray …   Dictionnaire des rimes

  • Gray — puede referirse a: Contenido 1 Apellido 1.1 Personajes 1.1.1 Botánicos[1] 2 Divisiones administrativas …   Wikipedia Español

  • Gray — (gr[=a]), a. [Compar. {Grayer}; superl. {Grayest}.] [OE. gray, grey, AS. gr[=ae]g, gr[=e]g; akin to D. graauw, OHG. gr[=a]o, G. grau, Dan. graa, Sw. gr[*a], Icel. gr[=a]r.] [Written also {grey}.] 1. any color of neutral hue between white and… …   The Collaborative International Dictionary of English

  • Gray — 〈[grɛı] n. 15; 〉 Einheit für die Energiedosis ionisierender Strahlen, 1 Gy = 1 J/kg = 100 rad [nach dem amerikan. Physiker Louis Harold Gray, 1905 1965] * * * Gray [greɪ; nach dem brit. Physiker L. H. Gray (1905–1965)], das; s; Einheitenzeichen:… …   Universal-Lexikon

  • gray — [ grɛ ] n. m. • 1975; de Stephen Gray ♦ Métrol. Unité de mesure de dose absorbée de radiation (symb.Gy) communiquant à 1 kg de matière irradiée une énergie de 1 joule. ⇒ rad. ⊗ HOM. Grès. ● gray nom masculin (de Louis Harold Gray, nom propre)… …   Encyclopédie Universelle

  • GRAY (T.) — GRAY THOMAS (1716 1771) Solitaire et mélancolique, grand admirateur de la nature «sauvage», Thomas Gray, l’un des grands noms de la poésie anglaise du XVIIIe siècle, manifesta aussi un intérêt profond pour les littératures celtique et nordique,… …   Encyclopédie Universelle

  • Gray — Gray, GA U.S. city in Georgia Population (2000): 1811 Housing Units (2000): 713 Land area (2000): 2.418527 sq. miles (6.263956 sq. km) Water area (2000): 0.009479 sq. miles (0.024550 sq. km) Total area (2000): 2.428006 sq. miles (6.288506 sq. km) …   StarDict's U.S. Gazetteer Places

  • gray — gray; gray·ish; gray·ling; gray·ness; gray·son; gray·wacke; gray·ly; ti·gray; …   English syllables

  • gray — gray1 [grā] adj. [ME grai < OE græg, akin to Ger grau < IE base * ĝher , to shine, gleam > Czech zříti, to see] 1. of a color that is a mixture or blend of black and white 2. a) darkish; dull b) dreary; dismal 3 …   English World dictionary

  • Gray — (gr[=a]), n. 1. A gray color; any mixture of white and black; also, a neutral or whitish tint. [1913 Webster] 2. An animal or thing of gray color, as a horse, a badger, or a kind of salmon. [1913 Webster] Woe worth the chase, woe worth the day.… …   The Collaborative International Dictionary of English


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