n.
Pronunciation: präk- ' tä-l ə -j ē
Function: noun
Etymology: Greek pr ō ktos + English -logy
Date: 1899
: a branch of medicine dealing with the structure and diseases of the anus, rectum, and sigmoid colon
– proc · to · log · ic \ ˌ präk-t ə - ' lä-jik \ or proc · to · log · i · cal \ -ji-k ə l \ adjective
– proc · tol · o · gist \ präk- ' tä-l ə -jist \ noun