/ Dictionary / Index L larval: Meaning and Definition of Find definitions for: lar•val Pronunciation: (lär'vul), [key] — adj. of, pertaining to, or in the form of a larva. (of a disease) masked; not clearly defined. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: larval (Thesaurus) larva larvicide 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