/ Dictionary / Index O organosiloxane: Meaning and Definition of Find definitions for: or•ga•no•si•lox•ane Pronunciation: (ôr"gu-nō-si-lok'sān, ôr-gan"ō-), [key] — adj. Chem. a siloxane containing an organic group. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. organosilicon organotherapy Related Content Daily Word Quiz: leonine Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language