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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 classic literature ?
Gray Brother, when we are gone, hold the cows together, and drive them into the foot of the ravine.
The bulls swept off as Akela bayed, and Gray Brother stopped in front of the cows.
Akela and Gray Brother ran to and fro nipping the buffaloes' legs, and though the herd wheeled once to charge up the ravine again, Mowgli managed to turn Rama, and the others followed him to the wallows.
Buldeo, who was still stooping over Shere Khan's head, found himself sprawling on the grass, with a gray wolf standing over him, while Mowgli went on skinning as though he were alone in all India.
It was then that Mowgli made up a song that came up into his throat all by itself, and he shouted it aloud, leaping up and down on the rattling skin, and beating time with his heels till he had no more breath left, while Gray Brother and Akela howled between the verses.
If the Grays won, the county estimated its costs at $1.
That's why the Colin Grays of the 1990s need to think less about winning wars and more about keeping the peace.
1 of Grays Harbor County, Washington's (the District) $65,855,000 electric revenue and refunding bonds, series 2006.
Medium-sized for a whale, the grays average 36 to 40 feet long - the largest are more than 50 feet long.
Hamre, who began his banking career in the Tacoma and Puyallup area, held many leadership positions in both Pierce and Grays Harbor counties.
Though there is no known link between horses' colors and racing abilities, grays are objects of fascination in many ways:
In the past three weeks four baby grays have ended up dead or in distress off the California coast, an anomaly whale aficionados are struggling to explain.