monovalent

American  

[mon-uh-vey-luhnt] / ˌmɒn əˈveɪ lənt /

adjective

1. Chemistry. univalent.

2. Immunology.

   1. containing only one kind of antibody.

   2. pertaining to an antibody fragment with one antigen-binding site.

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monovalent British  

/ ˌmɒnəʊˈveɪlənt /

adjective

1. Also: univalent.  chem

   1. having a valency of one

   2. having only one valency

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monovalent Scientific  

/ mŏn′ə-vā′lənt /

1. Having a valence of 1; univalent.

2. Containing antigens from a single strain of a microorganism or virus. Used of a vaccine or serum.

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Other Word Forms

• monovalence noun
• monovalency noun

Etymology

Origin of monovalent

First recorded in 1865–70; mono- + -valent

Example Sentences

Some countries were indeed able to quash type 2 outbreaks with the monovalent vaccine.

From Science Magazine • May 7, 2024

But those with the newer monovalent vaccine had 3.5x higher levels of antibodies against the XBB and BQ.1.1 strains after their booster vaccination.

From Science Daily • Mar. 12, 2024

Tan, chief policy and partnerships officer at Immunize.org, told Salon he thinks it's difficult to make a definitive statement that the bivalent boosters weren't as effective as the monovalent ones.

From Salon • Jun. 4, 2023

“The FDA continuously and rigorously monitors data regarding the use of the monovalent and bivalent COVID-19 vaccines and all the data shows that the vaccines are safe,” Capobianco said in a statement.

From Seattle Times • Apr. 21, 2023

Hence, the general formula for all monobasic organic acids is R·COOH, the R representing any monovalent radical.

From The Chemistry of Plant Life by Thatcher, Roscoe Wilfred