quadrivalent

English

Pronunciation

• IPA^(key): /kwɒdrɪˈveɪlənt/

Adjective

quadrivalent (not comparable)

1. (chemistry) Having a valence of four
2. (of a vaccine) Protecting against four different (usually flu) viruses.
3. (graph theory) Said of a graph: that all of its vertices have degree four.
   • 2020 January 3, “Knot (mathematics)”, in English Wikipedia‎^[1], Wikimedia Foundation:

     In graph theory terms, a regular projection of a knot, or knot diagram is thus a quadrivalent planar graph with over/under-decorated vertices.

Synonyms

• tetravalent

See also

• bivalent
• trivalent
• quinquivalent

Noun

quadrivalent (plural quadrivalents)

1. (genetics) Any quadrivalent chromosome

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French

Etymology

quadri- +‎ -valent

Adjective

quadrivalent (feminine singular quadrivalente, masculine plural quadrivalents, feminine plural quadrivalentes)

1. quadrivalent (all senses)