phototropy
British
/ ˌfəʊtəʊˈtrəʊpɪ /
noun
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an alteration in the colour of certain substances as a result of being exposed to light of different wavelengths
-
the reversible loss of colour of certain dyestuffs when illuminated at a particular wavelength
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
