valency

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Etymology

From Late Latin valentia and Latin valentia + English -y.

Pronunciation

• (RP, America) enPR: vā'lənsē, IPA: /ˈveɪlənsi/

Noun

valency (chiefly)

1. (countable, chemistry) Alternative form of valence
   1. (uncountable, by extension) The capacity of something to combine with other things, as for example the capability of a vaccine as measured by the number of pathogen serotype that it can counteract.

      vaccine valency

2. (countable, graph theory) The number of edges connected to a vertex in a graph.

   Synonyms: degree

3. (countable, linguistics) Alternative form of valence
4. (uncountable) Importance, significance.

Related terms

• quantivalency

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