/ Dictionary / Index O osmic: Meaning and Definition of Find definitions for: os•mic Pronunciation: (oz'mik), [key] — adj. Chem. of or containing osmium in its higher valences, esp. the tetravalent state. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. osmatic osmics Related Content Daily Word Quiz: immense Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language