/ Dictionary / Index L lateral moraine: Meaning and Definition of Find definitions for: lat'eral moraine' Pronunciation: [key] — Geol. Geol. a moraine formed at the side of a glacier. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. lateral meristem lateral pass Related Content Daily Word Quiz: arboreal Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language