/ Dictionary / Index L leptosome: Meaning and Definition of Find definitions for: lep•to•some Pronunciation: (lep'tu-sōm"), [key] — n. a person of asthenic build. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. leptophos leptospermum Related Content Daily Word Quiz: cygnet Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language