/ Dictionary / Index L lingual protrusion lisp: Meaning and Definition of Find definitions for: lin'gual protru'sion lisp' Pronunciation: [key] — Phonet. Phonet. See under(def. 2). Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. lingual brace linguiça 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