'Rhopalocera' definitions:

Definition of 'Rhopalocera'

From: GCIDE

Rhopalocera \Rhop`a*loc"e*ra\, n. pl. [NL., from Gr. ??? a club + ??? ahorn.] (Zool.) A division of Lepidoptera including all the butterflies. They differ from other Lepidoptera in having club-shaped antennae. [1913 Webster]