/ Dictionary / Index M microstress: Meaning and Definition of Find definitions for: mi•cro•stress Pronunciation: (mī'krō-stres"), [key] — n. Metall. a stress in the microstructure of a metal, as one caused by the distortion of space lattices. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. microstethoscope microstructure 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