n.
Pronunciation: ˌ ä-m ə - ' ti-d ē - ə m
Function: noun
Inflected Form: plural -tid · ia \ -d ē - ə \
Etymology: New Latin, from Greek ommat-, omma eye; akin to Greek ō ps eye ― more at EYE
Date: 1884
: one of the elements corresponding to a small simple eye that make up the compound eye of an arthropod
– om · ma · tid · i · al \ -d ē - ə l \ adjective