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

To get at his biggest questions, Boon is now trying to set up studies to test the blood of lots of people in Missouri and Kansas for antibodies to Bourbon virus and assess how many of them have ever been exposed to it. Megan Molteni, WIRED, "The Meat-Allergy Tick Also Carries a Mystery Killer Virus," 8 July 2019 According to a Monday release, scientists tested the vaccine on mice and found the animals were able to develop antibodies that combatted tau tangles, which can block communication between neurons. Adrianna Rodriguez, Now Reporter, USA TODAY, "More researchers report promising Alzheimer's vaccine results in mice," 20 Nov. 2018 People can’t pass down genes for antibodies to their children because only immune cells develop them. Quanta Magazine, "Breakthrough DNA Editor Born of Bacteria," 6 Feb. 2015 The same way an athlete develops muscle memory during training, vaccines help your immune system develop memory cells so antibodies can respond better and faster to antigens (any foreign cell or substance that triggers an immune response). CNN, "These dogs are getting a cancer vaccine. If it works, humans could be next," 21 June 2019 If your body isn’t responsive to medication, your doctor might recommend a splenectomy, which is a surgery to remove your spleen (which is mainly what creates the antibodies that attack platelets), the NHLBI explains. Patia Braithwaite, SELF, "What Even Causes ITP?," 21 June 2019 IgE antibodies normally attach themselves to a white blood mast cell, which secretes histamine to cause sneezing, which then expels the pollen or other offending allergen. Sam Roberts, New York Times, "Dr. Teruko Ishizaka, Who Advanced Allergy Treatment, Dies at 92," 13 June 2019 Krammer used a novel assay to measure the hemagglutinin stalk antibodies. Debbie Ponchner, Scientific American, "New Finding Advances the Search for a Universal Flu Vaccine," 3 June 2019 By testing before and after a measles infection, scientists can actually quantify which and how many antibodies someone has lost after an infection. National Geographic, "Measles vaccines protect against more than just measles. Here's how.," 4 Mar. 2019

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

11 Jul 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

Keep scrolling for more

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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