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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 ?
griseus can consume a good number of larvae in the laboratory condition when the larval density ranges below 280 larvae/l (10 larvae/250 ml) of water, as increase in the larval density over this value causes a cessation in the feeding rate (Type II response).
Improvement of the streptomyces griseus method for degradable protein in ruminant feeds.
Hull (1962)--In revising the asilid genera of the world included the following species in Synolcus--acrobaptus, aurulentus, dubius, griseus, signatus (its synonymy with dubius being ignored) and tenuiventris.
5% Myrtillocactus geometrizans, 500 and 2,000 ppm of Mammillaria ritteriana gibberellic acid Arequipa erectocylindrica, 500 and 1,000 ppm of Eulychnia longispina, gibberellic acid Eulychnia castanea Cereus Soaking seeds for 30 min in 100-200 ppm of gibberellic acid Cereus griseus 0.
griseus that have become isolated from larger populations due to the establishment of new suburban housing tracts and freeways, and the resulting fragmentation of habitat.
griseus horizontalis Cistus, low-growing Cotoneaster, low-growing Hypericum calycinum Lantana, lavender-flowered Myoporum Polygonum capitatum Rosemary (Rosmarinus officinalis) Sollya heterophylla
Regional variation in the population structure of gray snapper, Lutjanus griseus, along the west Florida shelf.
2 Short-billed Dowitcher Limnodromus griseus & Long- billed Dowitcher Limnodromus scolopaceus Lesser Scaup (4) Aythya affinis 82 638 7.
griseus (western gray tree squirrel), both which have two upper premolars.
griseus referred to the Centers for Disease Control and Prevention were frequently resistant to ampicillin (80%), sulfamethoxazole (43%), cotrimoxazole (29%), and ciprofloxacin (57%) (10).