Main Entry: en·an·tio·mer

Pronunciation: \i-ˈnan-tē-ə-mər\

Function: noun

Etymology: Greek enantios + English -mer

Date: circa 1929

: either of a pair of chemical compounds whose molecular structures have a nonsuperimposable mirror-image relationship to each other — compare diastereomer

— en·an·tio·mer·ic \-ˌnan-tē-ə-ˈmer-ik\ adjective