Meaning of antibody in English:


Pronunciation /ˈantɪˌbɒdi/

See synonyms for antibody on

Translate antibody into Spanish

nounplural noun antibodies

  • A blood protein produced in response to and counteracting a specific antigen. Antibodies combine chemically with substances which the body recognizes as alien, such as bacteria, viruses, and foreign substances in the blood.

    ‘We can reduce levels of that substance by introducing into the body antibodies that specifically recognize it.’
    • ‘You have an immune response to the vaccine as your body develops antibodies to the virus.’
    • ‘An antibody is a protein which recognises a foreign molecule, known as an antigen.’
    • ‘The levels of immune globulins and of certain antibodies in the blood may indicate a problem in the immune system.’
    • ‘There were always free antibodies; there were antibodies in the blood for some weeks.’
    • ‘An antibody is any protein that is released in the body in direct response to infection by an antigen.’
    • ‘If you've already had it, your body has produced antibodies that fight the virus if you come into contact with it again.’
    • ‘But if you have hay fever, your body produces antibodies in response to pollen.’
    • ‘In MS, the fluid may contain white blood cells, high levels of protein and certain antibodies.’
    • ‘For example, if you are of blood type A, your body will generate antibodies to attack the B protein.’
    • ‘Secondly, this membrane sheet is treated with a solution containing an antibody to the protein of interest.’
    • ‘A surprising result [of the research] was that we could even make mice make antibodies to their own proteins.’
    • ‘New therapies based on proteins and antibodies would stop in their tracks chronic diseases such as cancer.’
    • ‘Bcells are white blood cells which defend the body against viruses and bacteria by making antibodies.’
    • ‘When exposed to an antigen, that is a virus or a bacterium, the body produces antibodies.’
    • ‘A healthy body develops antibodies, which hopefully resist the antigens, by binding on them.’
    • ‘Local government staff took blood samples from each truckload to test for virus antibodies.’
    • ‘HIV infection is detected using a blood test that looks for antibodies created by the body as it tries to fight the virus.’
    • ‘A blood test can detect antibodies to the hepatitis C virus and a positive test shows that you have been infected.’
    • ‘In its attempt to protect the body, it creates specific antibodies to the food.’


Early 20th century from anti-+ body, translating German Antikörper, from anti- ‘against’ + Körper ‘body’.