/ Dictionary / Index E explosimeter: Meaning and Definition of Find definitions for: ex•plo•sim•e•ter Pronunciation: (ek"splō-zim'i-tur, -sim'-), [key] — n. a device for measuring the concentration of potentially explosive fumes. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. explosible explosion Related Content Daily Word Quiz: cautious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language