from The American Heritage® Dictionary of the English Language, 5th Edition.

  • adjective Of or relating to an achromatic color of any lightness between the extremes of black and white.
  • adjective Dull or dark.
  • adjective Lacking in cheer; gloomy.
  • adjective Having gray hair; hoary.
  • adjective Old or venerable.
  • adjective Intermediate in character or position, as with regard to a subjective matter.
  • noun An achromatic color of any lightness between the extremes of black and white.
  • noun An object or animal of the color gray.
  • noun A member of the Confederate Army in the Civil War.
  • noun The Confederate Army.
  • intransitive verb To make gray.
  • intransitive verb To become gray.
  • intransitive verb To become old; age.
  • intransitive verb To include a large or increasing proportion of older people.
  • noun The SI unit for the energy absorbed from ionizing radiation, equal to one joule per kilogram.

from The Century Dictionary.

  • Of a color between white and black, having little or no positive color, and only moderate luminosity; of the color of black hair which has begun to turn white, as seen at some distance.
  • Having gray hairs; gray-headed.
  • Old; mature: as, gray experience.
  • noun A gray color or tint; a color having little or no distinctive hue (chroma) and only moderate luminosity.
  • noun An animal of a gray color.
  • noun A gray horse.
  • noun The gray duck, or gadwall.
  • noun The California gray whale; the grayback.
  • noun A kind of salmon, Salmo ferox.
  • noun Twilight: as, the gray of the morning, or of the evening.
  • noun plural A Scottish regiment of cavalry forming the second regiment of dragoons in the British army: so called from the color of their horses. Also Scots Grays.
  • noun Unbleached cotton fabric; a piece of cotton or worsted cloth, in the natural color of the raw material, as it comes from the loom, before it is dyed or finished.
  • noun Same as methylene gray.
  • noun A water-color consisting of carbon-black, lake, and indigo.
  • To cause to become gray; change to a gray color.
  • To depolish, as glass.
  • In photography, to give a mezzotint effect by covering the negative during the printing with a glass slightly ground or depolished on one side. Pictures thus treated are sometimes called Berlin portraits.

from the GNU version of the Collaborative International Dictionary of English.

  • noun the SI unit of absorbed dosage of ionizing radiation, equal to an absorbed energy of 1 joule per kilogram of irradiated material; -- abbreviated Gy. This unit is 100 times the commonly used unit, the rad.
  • adjective any color of neutral hue between white and black; white mixed with black, as the color of pepper and salt, or of ashes, or of hair whitened by age; sometimes, a dark mixed color.
  • adjective Gray-haired; gray-headed; of a gray color; hoary.
  • adjective Old; mature.
  • adjective gloomy; dismal.
  • adjective (Min.) stibnite.
  • adjective (Zoöl.) the chickara.
  • adjective (Min.) smaltite.
  • adjective (Min.) tetrahedrite.
  • adjective (Zoöl.) the gadwall; also applied to the female mallard.
  • adjective (Zoöl.) the peregrine falcon.
  • adjective See Franciscan, and Friar.
  • adjective (Zoöl.) the female of the blackcock or black grouse. See Heath grouse.
  • adjective (Bot.) a name of several plants of the genus Lithospermum; gromwell.


from The American Heritage® Dictionary of the English Language, 4th Edition

[Middle English grei, from Old English grǣg.]

from The American Heritage® Dictionary of the English Language, 4th Edition

[After Louis Harold Gray, (1905–1965), British radiobiologist.]

from Wiktionary, Creative Commons Attribution/Share-Alike License

Named after Louis Harold Gray.

from Wiktionary, Creative Commons Attribution/Share-Alike License

From Old English grǣġ, from Proto-Germanic *grēwaz (compare Dutch grauw, German grau, Old Norse grár), from Pre-Germanic *ǵrēwo, from Proto-Indo-European *ǵʰer (“to shine, to glow”) (compare Latin rāvus ("grey"), Old Church Slavonic зьрѭ (zĭrjǫ, "to see, to glance"), Russian зреть ("to watch, to look at") (archaic), Lithuanian žeriù ("to shine")).


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  • The name of a dog in War and Peace. The same animal is also referred to as Flabby, Azor and Femgalka.

    November 16, 2007

  • For a discussion of "grey" vs. "gray" (among other things), see they.

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  • It's a greigh area.

    August 19, 2010