biodegradev.

Brit.

/ˌbʌɪə(ʊ)dᵻˈɡreɪd/, U.S.

/ˌbaɪoʊdəˈɡreɪd/,

/ˌbaɪoʊdiˈɡreɪd/

Origin: Formed within English, by compounding. Etymons: bio- comb. form, degrade v.

Etymology: < bio- comb. form + degrade v., after biodegradation n. Compare slightly earlier biodegradable adj., biodegradability n.

1. transitive. Of living organisms (esp. bacteria) or their metabolic or biochemical processes: to break down and decompose (a substance or object, esp. refuse or potential pollutants).

ΚΠ

1961 Brit. Patent 876,536 2/1 The problem of foaming recently encountered in sewage disposal plants..because of inability of conventional detergent materials to be biodegraded.

1975 Ann. N.Y. Acad. Sci. 258 142 The efficiency in biodegrading the pesticides is reduced in ascorbic-acid-deficient guinea pigs.

1981 New Scientist 6 Aug. 343/2 Red cells..are naturally biodegraded.

2005 Jrnl. Hazardous Materials 125 221 The activated sludge was able to further biodegrade the contaminants in the incoming industrial wastewater.

2. intransitive. Of a substance or object (esp. refuse or a potential pollutant): to undergo decomposition by living organisms (esp. bacteria), or their metabolic or biochemical processes.

ΚΠ

1967 B. Levitt Oils, Detergents, & Maintenance Specialties I. v. 69 Surfactants based on natural organic polyhydrols and fatty alcohols are said to biodegrade completely in about two days, under favorable conditions.

1989 Observer 3 Dec. 9/9 The ordinary black plastic refuse sack poses an environmental problem because of its inability to biodegrade.

1998 J. Ruryk Next Week will be Better xxi. 170 I can't seem to decide which is worse. Killing trees..or churning out plastic that doesn't biodegrade.

2005 N.Y. Times (National ed.) 1 May v. 3/3 Sewage is collected in a tank to biodegrade.

Derivatives

ˈbiodeˌgraded adj.

ΚΠ

1975 Marine Pollution Bull. 7 12/2 Figure 2 shows a gas chromatogram of the branched and cyclic alkanes of a biodegraded asphaltic crude oil.

2004 Austral. Finanacial Rev. (Nexis) 14 July 49 The aim is to produce biodegraded material that can be sold as a soil enhancer.

This entry has been updated (OED Third Edition, November 2010; most recently modified version published online December 2021).

单词	biodegrade
释义	biodegradev. Brit. /ˌbʌɪə(ʊ)dᵻˈɡreɪd/, U.S. /ˌbaɪoʊdəˈɡreɪd/, /ˌbaɪoʊdiˈɡreɪd/ Origin: Formed within English, by compounding. Etymons: bio- comb. form, degrade v. Etymology: < bio- comb. form + degrade v., after biodegradation n. Compare slightly earlier biodegradable adj., biodegradability n. 1. transitive. Of living organisms (esp. bacteria) or their metabolic or biochemical processes: to break down and decompose (a substance or object, esp. refuse or potential pollutants). ΚΠ 1961 Brit. Patent 876,536 2/1 The problem of foaming recently encountered in sewage disposal plants..because of inability of conventional detergent materials to be biodegraded. 1975 Ann. N.Y. Acad. Sci. 258 142 The efficiency in biodegrading the pesticides is reduced in ascorbic-acid-deficient guinea pigs. 1981 New Scientist 6 Aug. 343/2 Red cells..are naturally biodegraded. 2005 Jrnl. Hazardous Materials 125 221 The activated sludge was able to further biodegrade the contaminants in the incoming industrial wastewater. 2. intransitive. Of a substance or object (esp. refuse or a potential pollutant): to undergo decomposition by living organisms (esp. bacteria), or their metabolic or biochemical processes. ΚΠ 1967 B. Levitt Oils, Detergents, & Maintenance Specialties I. v. 69 Surfactants based on natural organic polyhydrols and fatty alcohols are said to biodegrade completely in about two days, under favorable conditions. 1989 Observer 3 Dec. 9/9 The ordinary black plastic refuse sack poses an environmental problem because of its inability to biodegrade. 1998 J. Ruryk Next Week will be Better xxi. 170 I can't seem to decide which is worse. Killing trees..or churning out plastic that doesn't biodegrade. 2005 N.Y. Times (National ed.) 1 May v. 3/3 Sewage is collected in a tank to biodegrade. Derivatives ˈbiodeˌgraded adj. ΚΠ 1975 Marine Pollution Bull. 7 12/2 Figure 2 shows a gas chromatogram of the branched and cyclic alkanes of a biodegraded asphaltic crude oil. 2004 Austral. Finanacial Rev. (Nexis) 14 July 49 The aim is to produce biodegraded material that can be sold as a soil enhancer. This entry has been updated (OED Third Edition, November 2010; most recently modified version published online December 2021). < v.1961
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