antibody

noun
an·​ti·​body | \ ˈan-ti-ˌbä-dē How to pronounce antibody (audio) \

Definition of antibody

: 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

And once the antigens are recognized, the immune system makes antibodies to fight them. Bartell Drugs, The Seattle Times, "It’s time to think about back-to-school vaccinations," 14 Aug. 2018 This means our immune system makes antibodies against it, which neutralize or eliminate it from the circulation. NBC News, "Cancer docs say 'superblood' may work against deadly malignancies," 2 Apr. 2018 The first drug based on a human antibody and created using this method was adalimumab, the academy said. Joanna Sugden, WSJ, "Nobel Chemistry Prize Is Awarded to Three Evolutionary Scientists," 3 Oct. 2018 The hormones and antibodies in breast milk help build up the baby’s immune system. Emily Williams, BostonGlobe.com, "Why the US should have supported global breastfeeding initiative," 10 July 2018 The patient went to the hospital Friday after seeing news reports about four people who had been given the rabies vaccine and antibody treatment, hospital spokesman Tom Lander said. Washington Post, "Fifth person treated for possible rabies," 12 May 2018 With a visible protein, Smith realized that scientists could train antibodies to target it with precision. David Grossman, Popular Mechanics, "The 2018 Nobels in Chemistry Made Evolution Work For Us," 3 Oct. 2018 Because White’s son was a preemie, access to breast milk was critical because of its immune antibodies. Jenna Sauers, Harper's BAZAAR, "Why Women Really Quit Breastfeeding," 17 July 2018 But monoclonal antibodies like the new drugs are grown in living cells and expensive to produce. New York Times, "F.D.A. Approves First Drug Designed to Prevent Migraines," 17 May 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'antibody.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of antibody

1894, in the meaning defined above

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Last Updated

21 Feb 2019

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Time Traveler for antibody

The first known use of antibody was in 1894

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More Definitions for antibody

antibody

noun

English Language Learners Definition of antibody

medical : a substance produced by the body to fight disease

antibody

noun
an·​ti·​body | \ ˈan-ti-ˌbä-dē How to pronounce antibody (audio) \
plural antibodies

Kids Definition of antibody

: a substance produced by special cells of the body that counteracts the effects of a disease germ or its poisons

antibody

noun
an·​ti·​body | \ ˈant-i-ˌbäd-ē How to pronounce antibody (audio) \
plural antibodies

Medical Definition of antibody

: 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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More from Merriam-Webster on antibody

Rhyming Dictionary: Words that rhyme with antibody

Spanish Central: Translation of antibody

Nglish: Translation of antibody for Spanish Speakers

Britannica.com: Encyclopedia article about antibody

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