/ Dictionary / Index P platinate: Meaning and Definition of Find definitions for: plat•i•nate Pronunciation: (plat'n-āt"), [key] — n. a salt of platinic acid. plat•i•nate Pronunciation: (plat'n-āt"), [key] — -nat•ed, -nat•ing. to platinize. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. platina plating Related Content Daily Word Quiz: simian Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language