/ Dictionary / Index O oximeter: Meaning and Definition of Find definitions for: ox•im•e•ter Pronunciation: (ok-sim'i-tur), [key] — n. Med. an instrument for measuring the oxygen saturation of the hemoglobin in a sample of blood. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: oximeter (Thesaurus) oxime oximetry Related Content Daily Word Quiz: respite Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language