/ Dictionary / Index A atmometer: Meaning and Definition of Find definitions for: at•mom•e•ter Pronunciation: (at-mom'i-tur), [key] — n. an instrument for measuring the rate at which water evaporates. Also called Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: atmometer (Thesaurus) atmolysis atmometry Related Content Daily Word Quiz: philtrum Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language