Pronunciation: (plat'n-ō-tīp"), [key]
1. a process of printing positives in which a platinum salt is used, rather than the usual silver salts, in order to make a more permanent print.
2. Also called plat'inum print". a print made by this process.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.