n.
Pronunciation: ˌ r ā -d ē - ō - ' ke-m ə -str ē
Function: noun
Date: 1904
: a branch of chemistry dealing with radioactive substances and phenomena including tracer studies
– ra · dio · chem · i · cal \ - ' ke-mi-k ə l \ adjective
– ra · dio · chem · i · cal · ly \ -k( ə -)l ē \ adverb
– ra · dio · chem · ist \ - ' ke-mist \ noun