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单词 bioindicator
释义

bioindicatorn.

Brit. /ˌbʌɪəʊˈɪndᵻkeɪtə/, U.S. /ˌbaɪoʊˈɪndəˌkeɪdər/
Origin: Formed within English, by compounding. Etymons: bio- comb. form, indicator n.
Etymology: < bio- comb. form + indicator n.
Ecology.
A biological indicator of an ecological or physiological process; spec. (the health or abundance of) an organism used as an indicator of the state of an ecosystem, esp. with respect to pollution (= indicator n. 2d).
ΚΠ
1955 AIBS Bull. 5 64/2 (Conference programme) The Harding-Passey melanoma as a bio-indicator of some metabolic effects of the ob gene.
1963 Z. M. Fineman et al. in A. W. Klement & V. Schultz Radioecology vii. 456 (caption) Jack rabbit bone as a bio-indicator of strontium-90 contamination.
1984 Coal Week (Nexis) 23 Apr. 3 Healthy ponderosa pine is a sign of a relatively clean environment since they are a sensitive bioindicator of airborne pollution.
2002 Nat. Home July 37/2 Frogs are considered important bio-indicators... Their permeable skin allows substances to move freely into their bodies, and their fatty tissues can absorb and concentrate toxins.
This entry has been updated (OED Third Edition, November 2010; most recently modified version published online December 2021).
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n.1955
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