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单词 photoactivity
释义

photoactivityn.

Brit. /ˌfəʊtəʊakˈtɪvᵻti/, U.S. /ˌfoʊdoʊˌækˈtɪvᵻdi/
Origin: Formed within English, by compounding. Etymons: photo- comb. form, activity n.
Etymology: < photo- comb. form + activity n., after photoactive adj.
The degree to which a substance or system is photoactive.
ΘΚΠ
the world > matter > physics > electromagnetic radiation > light > scientific effects of light > [noun] > degree of ability to change in response to
photoactivity1915
1915 Physical Rev. 5 45 This value of current was used in comparing the photo-activity of solutions.
1970 Biochimica et Biophysica Acta 223 444 The photoactivity was measured by observation of the blue-shift.
2002 Paint & Coatings Industry (Nexis) 1 Mar. 46 In the case of a white paint, the photoactivity of titania can actually accelerate the degradation process.
This entry has been updated (OED Third Edition, March 2006; most recently modified version published online March 2022).
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n.1915
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