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platinotype

[plat-n-oh-tahyp] /ˈplæt n oʊˌtaɪp/
noun, Photography
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 platinum print. a print made by this process.
Origin
1875-1880
1875-80; platin(um) + -o- + -type
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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British Dictionary definitions for platinum print

platinotype

/ˈplætɪnəʊˌtaɪp/
noun
1.
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
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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12
17
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