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valency  - definition and synonyms

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noun [countable] valency pronunciation in British English /ˈveɪlənsi/
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singularvalency
pluralvalencies
  1. 1
    chemistry a measurement of the ability of a chemical element to combine with other elements. The measurement is a number that shows how many atoms of the element combine with a single atom of the element hydrogen.
  2. 2
    linguistics the number of different types of clause that a word can be used with

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