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
Word origin
C20: named after Louis Harold Gray (1905–65), English physicist
Gray in British English
(ɡreɪ)
noun
1.
Simon (James Holiday). 1936–2008, British writer: his plays include Butley (1971), The Common Pursuit (1988), Life Support (1997), and Japes (2001)
2.
Thomas. 1716–71, English poet, best known for his Elegy Written in a Country Churchyard (1751)
Gray in American English
(greɪ)
1.
Asa1810-88; U.S. botanist
2.
Thomas1716-71; Eng. poet
gray in American English1
(greɪ)
adjective
1.
of a color that is a mixture or blend of black and white
2.
a.
darkish; dull
b.
dreary; dismal
3.
a.
having hair that is gray
b.
old, or old and respected
4.
wearing gray garments or uniforms
5.
designating a vague, intermediate area, as between morality and immorality
noun
6.
an achromatic color made by mixing or blending black and white
see also color
7.
an animal or thing colored gray; esp., a gray horse
8.
gray or unbleached fabric or clothing
9. [oftenG-]
a.
a person or group wearing a gray uniform
b.
a Confederate soldier
verb transitive, verb intransitive
10.
to make or become gray
Derived forms
grayly (ˈgrayly)
adverb
grayness (ˈgrayness)
noun
Word origin
ME grai < OE græg, akin to Ger grau < IE base *ĝher-, to shine, gleam > Czech zříti, to see
gray in American English2
(greɪ)
noun
the basic unit of an absorbed dose of radiation in the SI system, equal to the absorption ofone joule of energy per kilogram of material (100 rads)
abbrev. Gy
Examples of 'gray' in a sentence
gray
The ambiguities and gray areas of life do not bother you.
Christianity Today (2000)
What strange power burned in those cold gray eyes that sneered at her.
Kathleen E. Woodiwiss THE WOLF AND THE DOVE
His gray ones were light with the open innocence of a youth.
Kathleen E. Woodiwiss THE WOLF AND THE DOVE
His gray eyes seemed to look within her inner soul and search out the secrets hidden there.
Kathleen E. Woodiwiss THE WOLF AND THE DOVE
It can bring you face to face with the gray areas of scientific thought.
Porush, David A Short Guide to Writing About Science (1995)
He chewed a mouthful of meat and only held his gray eyes on her.
Kathleen E. Woodiwiss THE WOLF AND THE DOVE
An angry flush rose to her cheeks as she stared up into those gray eyes.
Kathleen E. Woodiwiss THE WOLF AND THE DOVE
Aislinn froze as his steely gray eyes pierced her.
Kathleen E. Woodiwiss THE WOLF AND THE DOVE
He remembered the gray old knight that Aislinn had buried the first time he met her.
Kathleen E. Woodiwiss THE WOLF AND THE DOVE
Wulfgar's gray eyes pierced the man.
Kathleen E. Woodiwiss THE WOLF AND THE DOVE
By the spring of 1864 he had risen through the ranks to first sergeant and his hair had turned gray.
Garraty, John Arthur The American Nation: A History of the United States to 1877 (1995)
Surf that web, and you may find answers about the great gray one who is about to enter your life.
Stanley Bing THROWING THE ELEPHANT (2002)
You see my gray hair, my worn look: it has all come fast.
George Eliot Daniel Deronda (1876)
He was a stocky man in his fifties, with thin, gray hair.
Sidney Sheldon The Other Side of Me
All related terms of 'gray'
grey
Grey is the colour of ashes or of clouds on a rainy day.
gray area
If you refer to something as a gray area , you mean that it is unclear , for example because nobody is sure how to deal with it or who is responsible for it, or it falls between two separate categories of things.
Gray code
a modification of a number system, esp a binary code , in which any adjacent pair of numbers, in counting order, differ in their digits at one position only, the absolute difference being the value 1
gray fox
either of two New World foxes ( Urocyon cinereoargenteus or U. littoralis ) having short gray and white hair and able to climb trees
gray jay
a large North American jay ( Perisoreus canadensis ) with gray and black feathers and no crest
gray wolf
a large, gray wolf ( Canis lupus ) that hunts in packs , once common throughout the northern part of the Northern Hemisphere
iron gray
a dark to medium gray like that of freshly broken cast iron
dapple-gray
gray spotted with darker gray
gray-headed
having gray hair
gray market
a market , as for imported goods, operating outside the authorized system of distribution
gray matter
grayish nerve tissue of the brain and spinal cord , consisting chiefly of nerve cells, with few nerve fibers
gray water
household waste water that can be reused for some purposes without purification, e. g . bath water, which can be used to water plants
gray whale
a mostly black, migratory baleen whale ( Eschrichtius robustus ) of the N Pacific: it is the only member of its family (Eschrichtiidae)
Oxford gray
a very dark gray , approaching black
pearl gray
a pale bluish gray
silver-gray
gray with a silvery luster
steel gray
a bluish-gray color
gray eminence
→ éminence grise
Gray's Inn
(in England) one of the four legal societies in London that together form the Inns of Court
gray snapper
a snapper , Lutjanus griseus , of shallow waters off the coast of Florida , having a grayish-green body with a brown spot on each scale
gray squirrel
any of several large, gray squirrels (genus Sciurus ), native to the U.S.
grey fox
a greyish American fox , Urocyon cinereoargenteus, inhabiting arid and woody regions from S North America to N South America
grey gum
any of various eucalyptus trees of New South Wales having dull grey bark , esp Eucalyptus punctata
kouprey
a large wild member of the cattle tribe , Box sauveli , of SE Asia, having a blackish-brown body and white legs : an endangered species
grey area
If you refer to something as a grey area , you mean that it is unclear , for example because nobody is sure how to deal with it or who is responsible for it, or it falls between two separate categories of things.
grey body
a body that emits radiation in constant proportion to the corresponding black-body radiation
grey duck
a New Zealand duck , Anas superciliosa , with grey-edged brown feathers
Grey Friar
a Franciscan friar
grey heron
a large European heron , Ardea cinerea , with grey wings and back and a long black drooping crest
grey nomad
any elderly retired person who spends time travelling around the country in a mobile home
grey power
the political, financial , or social influence of elderly people
grey sedge
an angler's name for a greyish caddis fly, Odontocerum albicorne, that frequents running water, in which its larvae make cases from grains of sand
grey-state
(of a fabric or material ) not yet dyed
grey vote
the body of elderly people's votes , or elderly people regarded collectively as voters
grey water
household waste water that can be reused for some purposes without purification, e. g . bath water, which can be used to water plants
grey-wave
denoting a company or an investment that is potentially profitable but is unlikely to fulfil expectations before the investor has grey hair
grey whale
a large N Pacific whalebone whale , Eschrichtius glaucus, that is grey or black with white spots and patches : family Eschrichtidae
grey wolf
a variety of the wolf , Canis lupus , having a grey brindled coat and occurring in forested northern regions, esp of North America
grey-haired
having grey hair
grey import
an imported vehicle that does not have an exact model equivalent in the receiving country
grey knight
an ambiguous intervener in a takeover battle , who makes a counterbid for the shares of the target company without having made his or her intentions clear
grey market
Grey market goods are bought unofficially and then sold to customers at lower prices than usual .
grey matter
You can refer to your intelligence or your brains as grey matter .
grey mullet
any teleost food fish of the family Mugilidae, mostly occurring in coastal regions, having a spindle-shaped body and a broad fleshy mouth
grey eminence
a person who wields power and influence unofficially or behind the scenes
grey panther
a member of the generation of affluent older consumers , who regard themselves as young, active , and sociable
grey squirrel
a grey-furred squirrel , Sciurus carolinensis, native to E North America but now widely established elsewhere
grey warbler
a small bush bird that hatches the eggs of the shining cuckoo
gunmetal
a type of bronze containing copper (88 per cent ), tin (8–10 per cent), and zinc (2–4 per cent): used for parts that are subject to wear or to corrosion , esp by sea water
kanae
any teleost food fish of the family Mugilidae, mostly occurring in coastal regions, having a spindle-shaped body and a broad fleshy mouth