Search results for 'gray':

gray¹ noun (symbol Gy) the SI unit of absorbed dose of ionizing radiation, equivalent to one joule per kilogram.
ETYMOLOGY: 1970s: named after L H Gray (1905-65), British radiobiologist.

grey or (especially N Amer) gray adj (greyer, greyest) 1 of a colour between black and white, the colour of ash and slate. 2 said of the weather: dull and cloudy. 3 a said of a someone's hair: turning white; b said of a person: having grey hair. 4 derog anonymous or uninteresting; having no distinguishing features • a grey character. 5 literary aged, mature or experienced. 6 colloq referring or relating to elderly or retired people • the grey population. noun (greys) 1 a colour between black and white. 2 grey material or clothes • dressed in grey. 3 dull light. 4 an animal, especially a horse, that is grey or whitish in colour. verb (greyed, greying) tr & intr to make or become grey. greyish adj. greyly adverb. greyness noun.
ETYMOLOGY: Anglo-Saxon grei.