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noun

valency

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Valency (noun) means the ability of something to join or react with other things, such as how many types of germ a vaccine can work against.

noun
1
The ability of something to join or react with other things, such as how many types of germ a vaccine can work against.
"Some etymons appear to have greater valency than others when it comes to the formation of portmanteau words." — James Lambert, A Multitude of ‘Lishes’: The Nomenclature of Hybridity (2018)
2
(maths) The number of lines that meet at a single point in a graph.
3
How important or significant something is.
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Etymology

From Late Latin valentia and Latin valentia (“bodily strength; health; vigour”) + English -y (suffix forming abstract nouns denoting a condition, quality, or state). Valentia is derived from valēns (“healthy, strong, vigorous”) + -ia (suffix forming feminine abstract nouns); while valēns is the present active participle of valeō (“to be healthy, sound, or well; to be strong; to have influence or power, etc.”), ultimately from Proto-Indo-European *h₂welh₁- (“to rule; powerful, strong”). Sense 1 (“combining capacity of an atom”) and sense 3 (“number of arguments a verb can have”) are possibly from valence + -y.

Related words

Rhymes for valency

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Frequently asked questions

What is the meaning of valency?
"valency" (noun) means the ability of something to join or react with other things, such as how many types of germ a vaccine can work against.
What is another word for valency?
Other words for "valency" include valence, degree.
What are the different meanings of valency?
"valency" has 3 main meanings: 1. The ability of something to join or react with other things, such as how many types of germ a vaccine can work against; 2. (maths) The number of lines that meet at a single point in a graph; 3. How important or significant something is.

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Definitions from Wiktionary, CC BY-SA 4.0 · etymology from Wiktionary