/ Dictionary / Index P platinocyanic acid: Meaning and Definition of Find definitions for: plat'inocyan'ic ac'id Pronunciation: [key] — Chem. Chem. the hypothetical acid containing platinum and the cyano group, HPt(CN). Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. platinocyanic platinocyanide Related Content Daily Word Quiz: frugal Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language