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gray

 [gra]
the SI unit of absorbed radiation dose, defined as the transfer of 1 joule of energy per kilogram of absorbing material (1 J/kg); 1 gray equals 100 rads.

gray (Gy),

(grā),
The SI unit of absorbed dose of ionizing radiation, equivalent to 1 J/kg of tissue; 1 Gy = 100 rad.
Synonym(s): griseus
[Louis H. Gray, British radiologist, 1905-1965]

gray

(gra)
1. of a hue between white and black.
2. a unit of absorbed radiation dose equal to 100 rads. Abbreviated Gy.

gray (Gy)

the SI unit of absorbed radiation dose. One gray equals the energy equivalent of 1 J/kg of matter; 1 Gy equals 100 rad. See also radiation absorbed dose.
Radiation oncology noun The SI unit for radiation, based on actual radiation absorption, as measured by a thermoluminescent dosimeter placed within a patient or a phantom; 1 Gy is equal to 1 joule/kg of absorber, roughly equivalent to 100 rads
Vox populi adjective Referring to an older person, usually at or near the age of retirement

gray

Gy Radiation physics The SI unit for radiation, based on actual radiation absorption, as measured by a thermoluminescent dosimeter placed within a Pt or a phantom; 1 Gy is equal to 1 joule/kg of absorber–100 rads

gray

(grā)
The SI unit of absorbed dose of ionizing radiation, equivalent to 1 J/kg of tissue; 1 Gy = 100 rad.
[Louis H. Gray, British radiologist, 1905-1965]

gray

A unit of absorbed dose of radiation equal to an energy absorption of 1 Joule per kilogram of irradiated material. 1 Gy is equivalent to 100 RADS. In radiotherapy, radiation is commonly applied to the area of the tumour in a dosage of around 2 Gy a day, five days a week for periods of 3–6 weeks.

gray

(Gy) (grā)
The SI unit of absorbed dose of ionizing radiation, equivalent to 1 J/kg of tissue; 1 Gy = 100 rad.
[Louis H. Gray, British radiologist, 1905-1965]

Gray (Gy),

n a unit of measurement for an absorbed dose of radiation, from the French
Systéme International d'Unités; converts to the traditional rad by the formula 100 rad = 1 Gy.
References in periodicals archive ?
14) Asa Gray, "Darwin and His Reviewers," Atlantic Monthly, 6 (October) 1860 : 406-425; Asa Gray, Darwiniana: Essays and Reviews Pertaining to Darwinism, edited by Asa Gray.
Darwin's most able defender in North America, Asa Gray, also commended the new theory from a Christian point of view.
Hoeveler describes Darwin's ideas and life and the perceptions of such as Louis Agassiz, Asa Gray, Charles Hodge, James McCosh, Henry Ward Beecher, John Bascom, William Garland Sumner, Lester Frank Ward, Charlotte Perkins Gilman, Eliza Burt Gamble, Thorstein Veblen, Oliver Wendell Holmes Jr.