/ Dictionary / Index N nitrometer: Meaning and Definition of Find definitions for: ni•trom•e•ter Pronunciation: (nī-trom'i-tur), [key] — n. an apparatus for determining the amount of nitrogen or nitrogen compounds in a substance or mixture. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. nitromersol nitromethane Related Content Daily Word Quiz: simian Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language