/ Dictionary / Index M microlith: Meaning and Definition of Find definitions for: mi•cro•lith Pronunciation: (mī'kru-lith), [key] — n. Archaeol. a tiny stone tool, often of geometric shape, made from a bladelet and mounted singly or in series as the working part of a composite tool or weapon, esp. during late Upper Paleolithic and Mesolithic times. Cf. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. microlite microlithic Related Content Daily Word Quiz: loathe Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language