-
- To save this word, you'll need to log in.
antibody
noun
an·ti·body
ˈan-ti-ˌbä-dē
: any of a large number of proteins of high molecular weight that are produced normally by specialized B cells after stimulation by an antigen and act specifically against the antigen in an immune response, that are produced abnormally by some cancer cells, and that typically consist of four subunits including two heavy chains and two light chains
called also immunoglobulin
Examples of antibody in a Sentence
Recent Examples on the Web
Since sleep benefits your immune system, not having enough sleep doesn’t give your body a chance to produce adequate immune cells, antibodies, and other immune proteins.
—Heidi Moawad, Verywell Health, 5 Dec. 2024
The building is infamously stubborn, with decades-old antibodies on hair-trigger alert for anything too radical.
—Colin Demarest, Axios, 20 Nov. 2024
As of March, 41% of eligible infants had received the RSV antibody treatment.
—Sabrina Malhi The Washington Post, arkansasonline.com, 30 Nov. 2024
The peptides activate receptors of a gut hormone called GLP-1, while the antibody blocks receptors of another hormone called GIP hormone.
—Annika Kim Constantino, CNBC, 26 Nov. 2024
See all Example Sentences for antibody
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.
Word History
First Known Use
1894, in the meaning defined above
Phrases Containing antibody
Dictionary Entries Near antibody
Cite this Entry
“Antibody.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/antibody. Accessed 21 Dec. 2024.
Kids Definition
antibody
noun
an·ti·body
ˈant-i-ˌbäd-ē
: a substance produced by special cells of the body that combines with an antigen and counteracts its effects or those of the microscopic plant or animal on which the antigen may occur
Medical Definition
antibody
noun
an·ti·body
ˈant-i-ˌbäd-ē
plural antibodies
: any of a large number of proteins of high molecular weight that are produced normally by specialized B cells after stimulation by an antigen and act specifically against the antigen in an immune response, that are produced abnormally by some cancer cells, and that typically consist of four subunits including two heavy chains and two light chains
called also immunoglobulin
More from Merriam-Webster on antibody
Nglish: Translation of antibody for Spanish Speakers
Britannica.com: Encyclopedia article about antibody
Love words? Need even more definitions?
Merriam-Webster unabridged
Share