-valencecomb. form

Primary stress is attracted to the first syllable of this combining form and vowels may be reduced accordingly.

Origin: A borrowing from Latin; partly modelled on a German lexical item. Etymon: Latin valentia.

Etymology: < classical Latin valentia (see valency n.; compare -ence suffix), frequently after German formations in -valenz. Compare French -valence . Compare valence n.² 3 and -valency comb. form.Formations are found from the second half of the 19th cent., apparently earliest in quantivalence n., earliest after German models. Compare earlier isolated borrowings or formations on words in -valent (see -valent comb. form), as equivalence n., prevalence n., omnivalence n. at omni- comb. form .

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1. Chiefly Chemistry. Forming nouns denoting types of valency as specified by the first element; esp. denoting the property of an element, ion, radical, etc., of forming a particular type of chemical bond, as electrovalence n., quadrivalence n., etc. Frequently corresponding to adjectives in -valent comb. form. Cf. -valency comb. form.

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2. Immunology. Forming nouns denoting the property of an antigen or antibody of binding to a specified number of antibodies or antigens, as monovalence n. Cf. -valency comb. form.

This is a new entry (OED Third Edition, November 2010; most recently modified version published online March 2022).

单词	-valence
释义	-valencecomb. form Primary stress is attracted to the first syllable of this combining form and vowels may be reduced accordingly. Origin: A borrowing from Latin; partly modelled on a German lexical item. Etymon: Latin valentia. Etymology: < classical Latin valentia (see valency n.; compare -ence suffix), frequently after German formations in -valenz. Compare French -valence . Compare valence n.² 3 and -valency comb. form.Formations are found from the second half of the 19th cent., apparently earliest in quantivalence n., earliest after German models. Compare earlier isolated borrowings or formations on words in -valent (see -valent comb. form), as equivalence n., prevalence n., omnivalence n. at omni- comb. form . Categories » 1. Chiefly Chemistry. Forming nouns denoting types of valency as specified by the first element; esp. denoting the property of an element, ion, radical, etc., of forming a particular type of chemical bond, as electrovalence n., quadrivalence n., etc. Frequently corresponding to adjectives in -valent comb. form. Cf. -valency comb. form. Categories » 2. Immunology. Forming nouns denoting the property of an antigen or antibody of binding to a specified number of antibodies or antigens, as monovalence n. Cf. -valency comb. form. This is a new entry (OED Third Edition, November 2010; most recently modified version published online March 2022). < comb. form
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