Bible Dictionaries
Platinotype

Webster's Dictionary

(1):

(n.) A permanent photographic picture or print in platinum black.

(2):

(n.) The process by which such pictures are produced.

Bibliography Information
Webster, Noah. Entry for 'Platinotype'. Noah Webster's American Dictionary. https://www.studylight.org/​dictionaries/​eng/​web/​p/platinotype.html. 1828.