bioaccumulationn.

Brit.

/ˌbʌɪəʊəˌkjuːmjᵿˈleɪʃn/, U.S.

/ˌbaɪoʊəˌkjum(j)əˈleɪʃən/

Origin: Formed within English, by compounding. Etymons: bio- comb. form, accumulation n.

Etymology: < bio- comb. form + accumulation n. Compare later bioaccumulate v.

Environmental Science.

Accumulation of (typically toxic) chemicals in the tissue of organisms, esp. so that their concentration increases in individuals with time; an instance of this. Cf. bioconcentration n., biomagnification n.

ΚΠ

1956 AIBS Bull. 6 66/2 Bioaccumulation of radioisotopes through aquatic food chains.

1977 Sci. Total Environment 8 197 Appreciably higher concentrations [of polychlorinated biphenyls] can be found in the sediments of waters receiving treatment plant discharges and bioaccumulation in fish is demonstrated readily.

1991 R. S. K. Barnes & K. H. Mann Fund. Aquatic Ecol. (ed. 2) xiii. 254/1 Many chlorinated pesticides, such as DDT, are soluble in lipids and since they are slowly metabolized, they accumulate in fatty tissues of aquatic animals (bioaccumulation).

2006 Daily Tel. 4 Jan. 7/3 Neither the presence of chemicals nor the bioaccumulation of them means they are doing any harm.

This is a new entry (OED Third Edition, November 2010; most recently modified version published online December 2021).

单词	bioaccumulation
释义	bioaccumulationn. Brit. /ˌbʌɪəʊəˌkjuːmjᵿˈleɪʃn/, U.S. /ˌbaɪoʊəˌkjum(j)əˈleɪʃən/ Origin: Formed within English, by compounding. Etymons: bio- comb. form, accumulation n. Etymology: < bio- comb. form + accumulation n. Compare later bioaccumulate v. Environmental Science. Accumulation of (typically toxic) chemicals in the tissue of organisms, esp. so that their concentration increases in individuals with time; an instance of this. Cf. bioconcentration n., biomagnification n. ΚΠ 1956 AIBS Bull. 6 66/2 Bioaccumulation of radioisotopes through aquatic food chains. 1977 Sci. Total Environment 8 197 Appreciably higher concentrations [of polychlorinated biphenyls] can be found in the sediments of waters receiving treatment plant discharges and bioaccumulation in fish is demonstrated readily. 1991 R. S. K. Barnes & K. H. Mann Fund. Aquatic Ecol. (ed. 2) xiii. 254/1 Many chlorinated pesticides, such as DDT, are soluble in lipids and since they are slowly metabolized, they accumulate in fatty tissues of aquatic animals (bioaccumulation). 2006 Daily Tel. 4 Jan. 7/3 Neither the presence of chemicals nor the bioaccumulation of them means they are doing any harm. This is a new entry (OED Third Edition, November 2010; most recently modified version published online December 2021). < n.1956
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