gray(redirected from Radiation hardened)
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gray 1also grey (grā)
adj. gray·er, gray·est also grey·er or grey·est
1. Of or relating to an achromatic color of any lightness between the extremes of black and white.
a. Dull or dark: a gray, rainy afternoon.
b. Lacking in cheer; gloomy: a gray mood.
a. Having gray hair; hoary.
b. Old or venerable.
4. Intermediate in character or position, as with regard to a subjective matter: the gray area between their differing opinions on the film's morality.
1. An achromatic color of any lightness between the extremes of black and white.
2. An object or animal of the color gray.
3. often Gray
a. A member of the Confederate Army in the Civil War.
b. The Confederate Army.
v. grayed, gray·ing, grays also greyed or grey·ing or greys
To make gray.
1. To become gray.
a. To become old; age.
b. To include a large or increasing proportion of older people: "Federal food programs can't keep up with the nation's rapidly graying population" (Michael J. McCarthy).
[Middle English grei, from Old English grǣg.]
n. Abbr. Gy
The SI unit for the energy absorbed from ionizing radiation, equal to one joule per kilogram.
[After Louis Harold Gray (1905-1965), British radiobiologist.]
adj, n, vb
(Colours) a variant spelling (now esp US) of grey
(Units) the derived SI unit of absorbed ionizing radiation dose or kerma equivalent to an absorption per unit mass of one joule per kilogram of irradiated material. 1 gray is equivalent to 100 rads. Symbol: Gy
[C20: named after Louis Harold Gray (1905–65), English physicist]
1. (Biography) Simon (James Holiday). 1936–2008, British writer: his plays include Butley (1971), The Common Pursuit (1988), Life Support (1997), and Japes (2001)
2. (Biography) Thomas. 1716–71, English poet, best known for his Elegy written in a Country Churchyard (1751)
adj. gray•er, gray•est or grey•er, grey•est,
n., v. adj.
1. of a color between white and black; having a neutral hue.
2. dark or gloomy: gray skies.
3. dull or monotonous.
4. having gray hair.
5. pertaining to old age; elderly: gray households.
6. indeterminate and intermediate in character: the gray area between realism and abstraction.n.
7. any achromatic color; any color intermediate between white and black.
8. something of this color.
9. gray material or clothing: to dress in gray.
10. an unbleached and undyed condition.
11. (often cap.) a member of the Confederate army in the American Civil War, or the army itself. Compare blue (def. 5).
12. a horse of a gray color.v.t., v.i.
13. to make or become gray.
[before 900; Old English grǣg, c. Middle Dutch grau, gra, Old High German grāo, Old Norse grār]
1. Asa, 1810–88, U.S. botanist.
2. Thomas, 1716–71, English poet.
A unit used to measure the energy absorbed from radiation. One gray is equal to one joule per kilogram, or 100 rads.
See also related terms for recent.
- An ash-gray … like that of the first thinning of the darkness after a rain-sodden night —Dan Jacobson
- (His face was) faintly gray like newsprint —John Updike
- (Eyes) gray as a goose —Geoffrey Chaucer
- Gray as a vault —Elizabeth Spencer
- Gray as bones —Martin Cruz Smith
- Gray as cement —Philip Levine
- (The weather had turned as) gray as concrete —Jean Thompson
- Gray as flannel —Jonathan Valin In his novel, Life’s Work, Valin thus describes what remains of a man’s hair: “Bald on top, gray as flannel on the sides.”
- (Eyes) gray as glass —Geoffrey Chaucer Chaucer used the simile in The Canterbury Tales (The Miller’s Tale) and Shakespeare used it in Gentlemen of Verona.
- Gray as lava —D. H. Lawrence
- (Skin) gray as lead —William Diehl
- (Warships) gray as sharks —George Garrett
- (Eyes … ) gray as storm clouds —Margaret Millar
- (Max was) gray as the sky —Susan Fromberg Schaeffer
- Gray like dust —Algernon Charles Swinburne
- Gray [hair] like the last snows of winter —John Cheever
- Gray like washed slate —John Updike
- (Eyes had gone) icy gray, like winter frost —Andrew Kaplan
Past participle: grayed
Switch to new thesaurus
|Noun||1.||gray - a neutral achromatic color midway between white and black|
dappled-gray, dappled-grey, dapple-gray, dapple-grey - grey with a mottled pattern of darker grey markings
|2.||gray - clothing that is a grey color; "he was dressed in grey"|
|3.||gray - any organization or party whose uniforms or badges are grey; "the Confederate army was a vast grey"|
|4.||gray - horse of a light gray or whitish color|
|5.||gray - the SI unit of energy absorbed from ionizing radiation; equal to the absorption of one joule of radiation energy by one kilogram of matter; one gray equals 100 rad|
radioactivity unit - a measure of radioactivity
|6.||Gray - English radiobiologist in whose honor the gray (the SI unit of energy for the absorbed dose of radiation) was named (1905-1965)|
radiobiologist - a biologist who studies the effects of radiation on living organisms
|7.||Gray - English poet best known for his elegy written in a country churchyard (1716-1771)|
|8.||Gray - American navigator who twice circumnavigated the globe and who discovered the Columbia River (1755-1806)|
|9.||Gray - United States botanist who specialized in North American flora and who was an early supporter of Darwin's theories of evolution (1810-1888)|
|Verb||1.||gray - make grey; "The painter decided to grey the sky"|
|2.||gray - turn grey; "Her hair began to grey"|
|Adj.||1.||gray - of an achromatic color of any lightness intermediate between the extremes of white and black; "the little grey cells"; "gray flannel suit"; "a man with greyish hair"|
|2.||gray - showing characteristics of age, especially having grey or white hair; "whose beard with age is hoar"-Coleridge; "nodded his hoary head"|
old - (used especially of persons) having lived for a relatively long time or attained a specific age; "his mother is very old"; "a ripe old age"; "how old are you?"
|3.||gray - used to signify the Confederate forces in the American Civil War (who wore grey uniforms); "a stalwart grey figure"|
southern - in or characteristic of a region of the United States south of (approximately) the Mason-Dixon line; "southern hospitality"; "southern cooking"; "southern plantations"
|4.||gray - intermediate in character or position; "a grey area between clearly legal and strictly illegal"|
intermediate - lying between two extremes in time or space or state; "going from sitting to standing without intermediate pushes with the hands"; "intermediate stages in a process"; "intermediate stops on the route"; "an intermediate range plane"
gray→ رَمَاديّ šedý grå grau γκρίζος gris harmaa gris siv grigio 灰色の 회색의 grijs grå szary cinzento серый grå สีเทา gri xám 灰色的
n. color gris;
___ cataract → catarata ___;
___ columns → columnas ___ -es;
___ degeneration → degeneración ___;
___ fibers → fibras ___ -es;
___ hepatization → hepatización ___;
___ induration → induración ___;
___ matter → sustancia ___.