cyanine
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cy·a·nine
(sī′ə-nēn′, -nĭn)n.
Any of various blue dyes, used to sensitize photographic emulsions to a greater range of light.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
cyanine
(ˈsaɪəˌniːn) orcyanin
n
1. (Dyeing) a blue dye used to extend the sensitivity of photographic emulsions to colours other than blue and ultraviolet
2. (Dyeing) any of a class of chemically related dyes, used for the same purpose
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
cy•a•nine
(ˈsaɪ əˌnin, -nɪn)also cy•a•nin
(-nɪn)n.
any of several groups of dyes that make silver halide photographic plates sensitive to a wider color range.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.