1. (chemistry) a measurement of the power of an atom to combine with others, by the number of atoms of hydrogen it can combine with or displace
   • ● Carbon has a valency of 4.
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   • antiparticle
   • atom
   • electron
   • ion
   • neutron
   • nucleus
   • particle
   • positron
   • proton
   • valency
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   • valency
2. (linguistics) the number of grammatical elements that a word, especially a verb, combines with in a sentence
Word Originearly 17th cent.: from late Latin valentia ‘power, competence’, from valere ‘be well or strong’.

[TahlilGaran] English Dictionary ▲