Main Entry: ra·dio·bi·ol·o·gy

Pronunciation: \ˌrā-dē-ō-bī-ˈä-lə-jē\

Function: noun

Date: 1919

: a branch of biology dealing with the effects of radiation or radioactive materials on biological systems

— ra·dio·bi·o·log·i·cal \-ˌbī-ə-ˈlä-ji-kəl\ also ra·dio·bi·o·log·ic \-jik\ adjective

— ra·dio·bi·o·log·i·cal·ly \-ji-k(ə-)lē\ adverb

— ra·dio·bi·ol·o·gist \-bī-ˈä-lə-jist\ noun