trivalent
adjective
tri·va·lent
(ˌ)trī-ˈvā-lənt 
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
That could effectively open up one of the seats in the vaccines, dropping them next season from quadrivalent formulations – targeting four different antigens in a single shot – to trivalent.
—
Alexander Tin, CBS News, 29 Feb. 2024
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
Alexander Tin, CBS News, 29 Feb. 2024
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
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
Dictionary Entries Near trivalent
Cite this Entry
“Trivalent.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/trivalent. Accessed 19 Apr. 2024.
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Medical Definition
trivalent
1 of 2 adjective
tri·va·lent
(ˈ)trī-ˈvā-lənt
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
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