photobleachv.
/ˈfəʊtə(ʊ)bliːtʃ/, U.S. /ˈfoʊdoʊˌblitʃ/ transitive. To remove colour from by exposure to light. Also intransitive: to lose colour due to such exposure.
ΘΚΠ
the world > matter > colour > named colours > white or whiteness > whitening > make white [verb (transitive)] > bleach > by exposure
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photobleach1948
1948 Jrnl. Physical & Colloid Chem. 52 529 Since chlorophyll is photobleached in solutions containing no added reactants, it appears much more probable that the course of the bleaching may [etc.].
1965 J. B. Thomas Primary Photoprocesses in Biol. iv. 95 Dissolved chlorophylls are much more readily irreversibly photobleached than chlorophylls in the in vivo state.
1978 Proc. National Acad. Sci. U.S.A. 75 2139/1 A brief laser pulse photobleaches the fluorescence from a small area on the cell.
2001 P. Anton et al. Global Technol. Revol. ii. 24 Quantum dots do not photobleach nearly as rapidly as dyes.
Derivatives
photoˈbleached adj. affected by photobleaching.
ΚΠ
1962 Jrnl. Physical Chem. 66 349/2 In several experiments..we have failed to detect its presence in photobleached solutions.
1993 Jrnl. Cell Biol. 120 1178/1 The stationary nature of photobleached MTs [i.e. microtubules] in mouse neurons is not an artifact.
This is a new entry (OED Third Edition, March 2006; most recently modified version published online March 2022).
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