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tropaeolin

[troh-pee-uh-lin] /troʊˈpi ə lɪn/
noun, Chemistry
1.
any of a number of orange or yellow azo dyes of complex molecular structure.
Also, tropeolin.
Origin
1875-1880
1875-80; < New Latin Tropaeol(um) nasturtium, genus of plants yielding the dyes (equivalent to Latin tropae(um) trophy + -olum, neuter of -olus -ole1) + -in2
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Based on the Random House Dictionary, © Random House, Inc. 2014.
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British Dictionary definitions for tropaeolin

tropaeolin

/trəʊˈpiːəlɪn/
noun
1.
any of certain yellow and orange azo dyes of complex structure
Word Origin
C19: see tropaeolum, -in
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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