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
Some antibodies are always better than fewer antibodies, and the booster will help with that.
—
Claire Reid, Journal Sentinel, 8 May 2024
The drug combination, which pairs a medication that enhances the immune system’s attack on bladder-cancer cells with an antibody targeted to those bladder-cancer cells that also carries a chemotherapy agent, more than doubled the median survival of patients, from just over a year to 2½ years.
—TIME, 2 May 2024
See all Example Sentences for antibody 
Claire Reid, Journal Sentinel, 8 May 2024
The drug combination, which pairs a medication that enhances the immune system’s attack on bladder-cancer cells with an antibody targeted to those bladder-cancer cells that also carries a chemotherapy agent, more than doubled the median survival of patients, from just over a year to 2½ years.
—TIME, 2 May 2024
See all Example Sentences for antibody
These examples are programmatically compiled from various online sources to illustrate current usage of the word 'antibody.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.
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Cite this Entry
“Antibody.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/antibody. Accessed 10 May. 2024.
Copy CitationKids 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
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