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单词 non-covalent
释义

non-covalentadj.

Brit. /ˌnɒnkəʊˈveɪlənt/, /ˌnɒnkəʊˈveɪln̩t/, U.S. /ˌnɑnkoʊˈveɪl(ə)nt/
Origin: Formed within English, by derivation. Etymons: non- prefix, covalent adj.
Etymology: < non- prefix + covalent adj.
Chemistry and Biochemistry.
Not of the nature of or involving a covalent bond.
ΚΠ
1958 Proc. National Acad. Sci. U.S.A. 44 645 A non-covalent binding of the deoxynucleoside triphosphate to the DNA is excluded.
1965 Jrnl. Molecular Biol. 12 106 Within oligomeric proteins the protomers are in general linked by a multiplicity of non-covalent bonds.
1989 B. Alberts et al. Molecular Biol. Cell (ed. 2) iii. 122 Proteins are brought together into larger structures by the same noncovalent forces that determine protein folding.
2000 Nature 21 Sept. 324/2 Pure cellulose paper, whose strength derives from non-covalent binding between cellulose fibres.
This is a new entry (OED Third Edition, December 2003; most recently modified version published online March 2022).
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adj.1958
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