Definition of photobleaching in English:

photobleaching

Syllabification: pho·to·bleach·ing
Pronunciation: /ˌfōtōˈblēCHiNG
 
/

noun

Biochemistry
  • Loss of color by a pigment (such as chlorophyll or rhodopsin) when illuminated.
    More example sentences
    • Changes of state, photobleaching, and photocycling often involve subtle changes in tertiary structure.
    • Another advantage of two-photon excitation is the decreased extent of photobleaching and photodamage above and below the focal plane.
    • The photoproduct again undergoes photobleaching during the second illumination.

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Pronunciation: ˌkələrəˈto͝orə
noun
elaborate ornamentation of a vocal melody