photoreducev.

Brit.

/ˌfəʊtə(ʊ)rᵻˈdjuːs/,

/ˌfəʊtə(ʊ)rᵻˈdʒuːs/, U.S.

/ˈˌfoʊdoʊrəˈd(j)us/,

/ˈˌfoʊdoʊriˈd(j)us/

Origin: Formed within English, by compounding. Etymons: photo- comb. form, reduce v.

Etymology: < photo- comb. form + reduce v. With sense 2 compare earlier photoreduction n. 1.

1. transitive. To reduce in size photographically.

ΚΠ

1894 Bot. Gaz. 19 55 (caption) Figs. 5–8... Photo-reduced from ink drawings.

1973 Amer. Math. Monthly 80 1087 A handbook, photoreduced from typed copy, designed to supplement any standard calculus course.

1980 Amer. Statistician 34 152/1 All graphs were executed by hand on ordinary graph paper and then traced and photoreduced.

1993 Byte Mar. 73/1 The book is then formatted, printed out with the LaserJet in Baskerville typeface, and photoreduced to proper page size.

2. transitive. To reduce photochemically.

ΘΚΠ

the world > matter > physics > electromagnetic radiation > light > scientific effects of light > [verb (transitive)] > reduce

photoreduce1950

1950 Ecol. Monogr. 20 224/2 Enough for the green bacteria to photoreduce with hydrogen sulphide to yield free sulphur.

1957 G. Oster in H. Gaffron et al. Res. Photosynthesis i. 53 Acriflavine under conditions where it is not photoreduced in the unbound state, is readily photoreduced when bound to polymeric acids.

1968 Plant Physiol. 43 606/1 All the mutants appeared to have the enzymes needed for the reduction of carbon dioxide..but..they photoreduced little or no CO₂.

1998 Ann. Rev. Ecol. & Systematics 29 553 When present at high concentrations, DOC [= dissolved organic carbon] seems to act as a competitive inhibitor for solar radiation, scavenging UV radiation before it can photoreduce Hg(II).

Derivatives

photoreˈducing adj. (in sense 2).

ΘΚΠ

the world > matter > physics > electromagnetic radiation > light > scientific effects of light > [adjective] > of chemical action of light > reducing or reduced

photoreduced1952

photoreducing1952

1952 Science 10 Oct. 398/1 The redox potential that chloroplasts will finally establish with an oxidant in light is a reflection of the photoreducing intensity of the photolytic system.

1965 Biochimica et Biophysica Acta 99 159 The lost NADP photoreducing activities of the sonicated chloroplasts..are fully restored on addition of plastocyanin.

1989 R. Dryer & G. Lata Exper. Biochem. i. vi. 122 Riboflavin is also unique in that it acts as its own photo-reducing agent.

This entry has been updated (OED Third Edition, March 2006; most recently modified version published online March 2022).

单词	photoreduce
释义	photoreducev. Brit. /ˌfəʊtə(ʊ)rᵻˈdjuːs/, /ˌfəʊtə(ʊ)rᵻˈdʒuːs/, U.S. /ˈˌfoʊdoʊrəˈd(j)us/, /ˈˌfoʊdoʊriˈd(j)us/ Origin: Formed within English, by compounding. Etymons: photo- comb. form, reduce v. Etymology: < photo- comb. form + reduce v. With sense 2 compare earlier photoreduction n. 1. 1. transitive. To reduce in size photographically. ΚΠ 1894 Bot. Gaz. 19 55 (caption) Figs. 5–8... Photo-reduced from ink drawings. 1973 Amer. Math. Monthly 80 1087 A handbook, photoreduced from typed copy, designed to supplement any standard calculus course. 1980 Amer. Statistician 34 152/1 All graphs were executed by hand on ordinary graph paper and then traced and photoreduced. 1993 Byte Mar. 73/1 The book is then formatted, printed out with the LaserJet in Baskerville typeface, and photoreduced to proper page size. 2. transitive. To reduce photochemically. ΘΚΠ the world > matter > physics > electromagnetic radiation > light > scientific effects of light > [verb (transitive)] > reduce photoreduce1950 1950 Ecol. Monogr. 20 224/2 Enough for the green bacteria to photoreduce with hydrogen sulphide to yield free sulphur. 1957 G. Oster in H. Gaffron et al. Res. Photosynthesis i. 53 Acriflavine under conditions where it is not photoreduced in the unbound state, is readily photoreduced when bound to polymeric acids. 1968 Plant Physiol. 43 606/1 All the mutants appeared to have the enzymes needed for the reduction of carbon dioxide..but..they photoreduced little or no CO₂. 1998 Ann. Rev. Ecol. & Systematics 29 553 When present at high concentrations, DOC [= dissolved organic carbon] seems to act as a competitive inhibitor for solar radiation, scavenging UV radiation before it can photoreduce Hg(II). Derivatives photoreˈducing adj. (in sense 2). ΘΚΠ the world > matter > physics > electromagnetic radiation > light > scientific effects of light > [adjective] > of chemical action of light > reducing or reduced photoreduced1952 photoreducing1952 1952 Science 10 Oct. 398/1 The redox potential that chloroplasts will finally establish with an oxidant in light is a reflection of the photoreducing intensity of the photolytic system. 1965 Biochimica et Biophysica Acta 99 159 The lost NADP photoreducing activities of the sonicated chloroplasts..are fully restored on addition of plastocyanin. 1989 R. Dryer & G. Lata Exper. Biochem. i. vi. 122 Riboflavin is also unique in that it acts as its own photo-reducing agent. This entry has been updated (OED Third Edition, March 2006; most recently modified version published online March 2022). < v.1894
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