trivalent

adjective

tri·​va·​lent (ˌ)trī-ˈvā-lənt How to pronounce trivalent (audio)
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 There are two formulations of flu vaccines: trivalent vaccines and quadrivalent ones. Beth Mole, Ars Technica, 5 Oct. 2023 But the makers of quadrivalent vaccines largely only have licenses to make quadrivalent vaccines—not trivalent ones. Beth Mole, Ars Technica, 5 Oct. 2023 But whether that’s easy or difficult to do will depend on whether flu vaccine manufacturers still have licenses for former trivalent formulations. Helen Branswell, STAT, 29 Sep. 2023 Many still use trivalent vaccine — a three-in-one shot that protects against influenza A viruses H1N1 and H3N2, plus one of the flu B viruses. Helen Branswell, STAT, 29 Sep. 2023 Novel vaccines targeting types 1 and 3 are now in development, and a trivalent vaccine, including all three of the new oral vaccines, will follow, said Bandyopadhyay. Helen Branswell, STAT, 26 May 2023 However, trivalent chromium has not been widely used in the decorative plating industry because its darker color is similar to stainless steel, an aesthetic that has not appealed to California car enthusiasts striving to mimic the high-gloss sheen of 20th century models. Tony Briscoe, Los Angeles Times, 25 May 2023 Hexavalent chromium, for example, is a potent carcinogen that has no safe amount of exposure while trivalent chromium is considered much less toxic. Tony Briscoe, Los Angeles Times, 2 Apr. 2023 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, 10 July 2019 See More

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'trivalent.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History

Etymology

International Scientific Vocabulary

First Known Use

1865, in the meaning defined at sense 1

Time Traveler
The first known use of trivalent was in 1865

Dictionary Entries Near trivalent

Cite this Entry

“Trivalent.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/trivalent. Accessed 28 Feb. 2024.

Medical Definition

trivalent

1 of 2 adjective
tri·​va·​lent (ˈ)trī-ˈvā-lənt How to pronounce trivalent (audio)
1
: having a chemical valence of three
2
: conferring immunity to three different pathogenic strains or species
a trivalent influenza vaccine

trivalent

2 of 2 noun
: a group of three synapsed homologous chromosomes in meiosis
Last Updated: - Updated example sentences
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