/ Dictionary / Index M microtektite: Meaning and Definition of Find definitions for: mi•cro•tek•tite Pronunciation: (mī"krō-tek'tīt), [key] — n. Geol. a microscopic tektite found in ocean sediments and polar ice. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. microteaching microtherm Related Content Daily Word Quiz: penchant Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language