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
People with multiple myeloma may overproduce some antibodies.
—
Carrie Madormo, Rn, Health, 24 Jan. 2025
The approach involves using RNA to administer antibodies against USAG-1.
—Paul Smaglik, Discover Magazine, 24 Jan. 2025
And new antibody drugs have helped increase the effectiveness of chemo while reducing side effects.
—Aria Bendix, NBC News, 16 Jan. 2025
In fact, a vaccine that causes cows to produce an antibody that interferes with their gut microbes’ ability to produce methane is under development.
—Marianne Krasny, Forbes, 13 Jan. 2025
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.
Carrie Madormo, Rn, Health, 24 Jan. 2025
The approach involves using RNA to administer antibodies against USAG-1.
—Paul Smaglik, Discover Magazine, 24 Jan. 2025
And new antibody drugs have helped increase the effectiveness of chemo while reducing side effects.
—Aria Bendix, NBC News, 16 Jan. 2025
In fact, a vaccine that causes cows to produce an antibody that interferes with their gut microbes’ ability to produce methane is under development.
—Marianne Krasny, Forbes, 13 Jan. 2025
See all Example Sentences for antibody
Dictionary Entries Near antibody
Cite this Entry
“Antibody.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/antibody. Accessed 30 Jan. 2025.
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
Love words? Need even more definitions?
Merriam-Webster unabridged
Share