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Definition of gray
1a : of the color grayb : tending toward gray blue-gray eyesc : dull in color
2 : having the hair gray : hoary
3 : clothed in gray
4a : lacking cheer or brightness in mood, outlook, style, or flavor; also : dismal, gloomy a gray dayb : prosaically ordinary : dull, uninteresting the boring, gray dullness of government — P. J. O'Rourke
5 : having an intermediate and often vaguely defined position, condition, or character an ethically gray area
grayly
adverbgrayness
nounPeople Are Reading
Examples of gray in a Sentence
What will you do when you are old and gray?
My friends have all gone gray.
It was a gray winter day.
the gray faces of the people in the crowd
Origin and Etymology of gray
Middle English, from Old English grǣg; akin to Old High German grīs, grāo gray
gray
grey
Definition of gray
1 : something (such as an animal, garment, cloth, or spot) of a gray color
2 : any of a series of neutral colors ranging between black and white
3a : a soldier in the Confederate army during the American Civil Warb often capitalized : the Confederate army
Origin and Etymology of gray
see 1gray
Origin and Etymology of gray
see 1gray
gray
Definition of gray
: the mks unit of absorbed dose of ionizing radiation equal to an energy of one joule per kilogram of irradiated material —abbreviation Gy
Origin and Etymology of gray
Louis H. Gray †1965 British radiobiologist
Gray
Definition of Gray
Thomas 1716–1771 English poet
GRAY Defined for English Language Learners
gray
Definition of gray for English Language Learners
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: to become gray
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: to become older
GRAY Defined for Kids
gray
grey
\ˈgrā\Definition of gray for Students
grayer
alsogreyer
;grayest
alsogreyest
1 : of a color that is a blend of black and white a gray stone
2 : having gray hair a gray old man
3 : lacking cheer or brightness a gray day
grayness
noungray
grey
Definition of gray for Students
: a color that is a blend of black and white
gray
grey
Definition of gray for Students
grayed
alsogreyed
;graying
alsogreying
: to make or become gray graying hair
Medical Dictionary
gray
Medical Definition of gray
: any of a series of neutral colors ranging between black and white
gray
or chiefly Britishgrey
adjectiveMedical Definition of gray
: the mks unit of absorbed dose of ionizing radiation equal to an energy of one joule per kilogram of irradiated material—abbreviation Gy
Biographical Note for gray
Gray
, Louis Harold
(1905–1965), British radiobiologist. In 1933 Gray established a physics laboratory to measure radiation in the treatment of cancer at Mount Vernon Hospital, Middlesex, England. Earlier he and Sir W. H. Bragg had formulated a theory for deducing the energy absorbed by a material exposed to gamma rays from the ionization within a small gas-filled cavity in the material. At Mount Vernon he was to apply his theory to X-rays and later, in modified form, to neutrons. Gray expressed the neutron dose values in energy units, anticipating the International Commission on Radiological Units, which in 1953 adopted the rad as the unit for measuring all types of ionizing radiation. In 1975 the Commission adopted the gray as the physical unit of dose.
Learn More about gray
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Thesaurus: All synonyms and antonyms for gray Spanish Central: Translation of gray Nglish: Translation of gray for Spanish speakers Britannica English: Translation of gray for Arabic speakers Britannica.com: Encyclopedia article about gray
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