an obsolete process for producing photographic prints using paper coated with an emulsion containing platinum salts, the resulting image in platinum black being more permanent and of a richer tone than the usual silver image
platinotype in American English
(ˈplætnouˌtaip)
noun Photography
1.
a process of printing positives in which a platinum salt is used, rather than the usual silver salts, inorder to make a more permanent print
2. Also called: platinum print
a print made by this process
Word origin
[1875–80; platin(um) + -o- + -type]This word is first recorded in the period 1875–80. Other words that entered Englishat around the same time include: fan-tan, musical chairs, pressure point, weekend, weekender-o- is the typical ending of the first element of compounds of Greek origin (as -i- is, in compounds of Latin origin), used regularly in forming new compounds with elementsof Greek origin and often used in English as a connective irrespective of etymology(Franco-Italian; geography; seriocomic; speedometer); -type is a suffix representing type (prototype), esp. in names of photographic processes (ferrotype). Other words that use the affix -type include: calotype, cerotype, collotype, ferrotype, phototype