trivalent

adjective
tri·​va·​lent | \ (ˌ)trī-ˈvā-lənt How to pronounce trivalent (audio) \

Definition of trivalent

1 : having a chemical valence of three
2 : conferring immunity to three different pathogenic strains or species a trivalent influenza vaccine

Examples of trivalent in a Sentence

Recent Examples on the Web

As a first step, in April 2016 all countries switched from the trivalent version of OPV—which covers all three types of polio virus—to a bivalent one, which lacks the type 2 component. Leslie Roberts, Science | AAAS, "Surging cases have dashed all hope that polio might be eradicated in 2019," 10 July 2019

First Known Use of trivalent

1865, in the meaning defined at sense 1

History and Etymology for trivalent

International Scientific Vocabulary

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More Definitions for trivalent

trivalent

adjective
tri·​va·​lent | \ (ˈ)trī-ˈvā-lənt How to pronounce trivalent (audio) \

Medical Definition of trivalent

 (Entry 1 of 2)

1 : having a chemical valence of three
2 : conferring immunity to three different pathogenic strains or species a trivalent influenza vaccine

trivalent

noun

Medical Definition of trivalent (Entry 2 of 2)

: a group of three synapsed homologous chromosomes in meiosis