/ Dictionary / Index I isothiocyanate: Meaning and Definition of Find definitions for: i•so•thi•o•cy•a•nate Pronunciation: (ī"su-thī"ō-sī'u-nāt"), [key] — n. a chemical compound containing the univalent radical –NCS. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: isothiocyanate (Thesaurus) isothermobath isotimic Related Content Daily Word Quiz: spectral Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language