Search centigray (cGy) centigray (cGy) /sen′tigra/ , a unit of absorbed radiation dose equal to one hundredth (10−2) of a gray, or 1 rad. Tweet Telegram VK Random Words thoracic nerves ileoanal ophthalmology (ophth) nephropexy periorbital ecchymosis dissociation syndrome catatonic stupor nucleophilic red cell indexes