|—adj, —n, —vb|
|a variant spelling (now esp US) of grey|
A unit for a specific absorbed dose of radiation equal to 100 rads.
Gray (grā), Henry. 1825?-1861.
British anatomist whose work Anatomy, Descriptive and Surgical (1858), known as Gray's Anatomy, remains a standard text.
|gray (grā) Pronunciation Key
The SI derived unit used to measure the energy absorbed by a substance per unit weight of the substance when exposed to radiation. One gray is equal to one joule per kilogram, or 100 rads. The gray is named after British physicist Louis Harold Gray (1905-1965).