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
Some epidemiologists suggest reversing the switch and returning to trivalent OPV for routine immunizations.
—
Saima S. Iqbal, Scientific American, 26 Sep. 2024
For instance, trivalent chrome uses a different form of chromium and a simpler process.
—Peter Valdes-Dapena, CNN, 14 June 2024
Due to the disappearance of the B/Yamagata lineage from circulation, WHO has recommended a trivalent influenza vaccine composition without B/Yamagata for 2024/2025 vaccines.
—Sacramento Bee, 10 June 2024
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
Saima S. Iqbal, Scientific American, 26 Sep. 2024
For instance, trivalent chrome uses a different form of chromium and a simpler process.
—Peter Valdes-Dapena, CNN, 14 June 2024
Due to the disappearance of the B/Yamagata lineage from circulation, WHO has recommended a trivalent influenza vaccine composition without B/Yamagata for 2024/2025 vaccines.
—Sacramento Bee, 10 June 2024
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
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.
Dictionary Entries Near trivalent
Cite this Entry
“Trivalent.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/trivalent. Accessed 4 Nov. 2024.
Copy CitationMedical 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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