/ Dictionary / Index L lepidopteran: Meaning and Definition of Find definitions for: lep•i•dop•ter•an Pronunciation: (lep"i-dop'tur-un), [key] — adj. lepidopterous. —n. a lepidopterous insect. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: lepidopteran (Thesaurus) Lepidoptera lepidopterology Related Content Daily Word Quiz: hedonist Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language