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1. Oxford Dictionary

   valency

   • IPA[ˈveɪlənsi]

   英式

   • n.
     the combining power of an element, especially as measured by the number of hydrogen atoms it can displace or combine with；the number of grammatical elements with which a particular word, especially a verb, combines in a sentence

   • noun: valency, plural noun: valencies

2. • 釋義

   n.

   名詞

   • 1. the combining power of an element, especially as measured by the number of hydrogen atoms it can displace or combine with carbon always has a valency of 4
   • ▪ the number of grammatical elements with which a particular word, especially a verb, combines in a sentence ‘give’ has a valency of three in ‘I (1) gave it (2) to him (3)’
3. • 更多解釋

   valency

   • IPA[ˈvālənsē]

   美式

   • n.
     another term for valence

   Oxford American Dictionary