/ Dictionary / Index L lateral lisp: Meaning and Definition of Find definitions for: lat'eral lisp' Pronunciation: [key] — Phonet. Phonet. See under(def. 2). Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. lateral line lateral magnification 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