/ Dictionary / Index E extensimeter: Meaning and Definition of Find definitions for: ex•ten•sim•e•ter Pronunciation: (ek"sten-sim'i-tur), [key] — n. extensometer. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. extensile extension Related Content Daily Word Quiz: cetacean Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language