GRAY (GY)
\ɡɹˈe͡ɪ d͡ʒˈa͡ɪ], \ɡɹˈeɪ dʒˈaɪ], \ɡ_ɹ_ˈeɪ__ dʒ_ˈaɪ]\
Sort: Oldest first
-
Metric (SI) measurement for absorbed radiation units. Equals 100 radiation absorbed doses, or RADs. UK resident Dr. L. Harold Gray (1905-1965) pioneered radiation as a cancer treatment, giving his name to this unit. One gray is defined as a dose of 1 joule of radiant energy absorbed per kilogram of matter.
By Henry Campbell Black
Word of the day
Snake's-head
- Guinea-hen flower; -- so called in England because its spotted petals resemble the scales of a snake's head.