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Longman Dictionary of Contemporary English

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BNC: 29315 COCA: 23410

valence

Related topics: Chemistry

va·len·ce /ˈveɪləns/ (also valency /-lənsi/) noun [countableC] technical

1. HCa measure of the power of atoms to combine together to form compounds 原子价，化合价

2. x-refanother spelling of valance / valance 的另一种拼法

Examples from the Corpus

valence• The patient will often refuse to go into a valence because he hates it.• We know the way a patient gets into valences when he dramatizes his engrams in life.• As with core levels, there are various approaches to the computation of valence level binding energies.• In a pure semiconductor the valence band is essentially filled and the higher conduction band essentially empty.• We see, then, that time, in the Orphic cosmological framework, has three valences.• In molecules with unpaired valence electrons, spin-spin coupling between valence and core electrons leads to further small splittings.• Bonding may be ionic or covalent, depending on whether valence electrons are transferred or shared.

Origin valence

(1800-1900) Late Latin valentia “power, ability”, from valere; → VALOR

va·len·ce noun

Chinese

Syllable

Corpus

See also: valance

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