/ Dictionary / Index M microsegment: Meaning and Definition of Find definitions for: mi•cro•seg•ment Pronunciation: (mī'kru-seg"munt), [key] — n. a stretch of speech preceded and followed but not interrupted by juncture. Cf. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. microsecond microseism Related Content Daily Word Quiz: censure Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language