quadrivalent

1 of 2

adjective

quad·​ri·​va·​lent ˌkwä-drə-ˈvā-lənt How to pronounce quadrivalent (audio)
in sense 2
kwä-ˈdri-və-lənt How to pronounce quadrivalent (audio)
1
2
: composed of four homologous chromosomes synapsed in meiotic prophase

quadrivalent

2 of 2

noun

: a quadrivalent chromosomal group

Examples of quadrivalent in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Adjective
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
Noun
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 Then the quadrivalent Gardasil was administered until 2023, when the nonavalent Gardasil 9 was introduced. Annalisa Merelli, STAT, 25 Jan. 2024 See all Example Sentences for quadrivalent 

Word History

Etymology

Adjective

International Scientific Vocabulary

First Known Use

Adjective

1865, in the meaning defined at sense 1

Noun

1923, in the meaning defined above

Time Traveler
The first known use of quadrivalent was in 1865

Dictionary Entries Near quadrivalent

Cite this Entry

“Quadrivalent.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/quadrivalent. Accessed 21 Dec. 2024.

Medical Definition

quadrivalent

1 of 2 adjective
quad·​ri·​va·​lent
ˌkwäd-rə-ˈvā-lənt, in sense 2 kwä-ˈdriv-ə-lənt
1
2
: composed of four homologous chromosomes synapsed in meiotic prophase

quadrivalent

2 of 2 noun
: a quadrivalent chromosomal group
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