Meaning of antigen in English:


Pronunciation /ˈantɪdʒ(ə)n/

See synonyms for antigen on

Translate antigen into Spanish


  • A toxin or other foreign substance which induces an immune response in the body, especially the production of antibodies.

    ‘All the conjugated peptides were injected together in white rabbits as antigens for antibody production.’
    • ‘Antibodies are gamma globulins produced by B lymphocytes when antigens enter the body.’
    • ‘As a result, the patient's immune system would produce antibodies to attack the foreign antigens.’
    • ‘When the synthetic peptide was used as the antigen, a monoclonal antibody was obtained.’
    • ‘But Jordi found ways, using antigens and antibodies, to figure it out.’
    • ‘However, the specificity of antibodies for antigens has a bearing on one of the issues in this case, and it is for that reason that I mention it.’
    • ‘Immunohistochemistry utilizes antibodies to visualize antigens in sections of tissue under the microscope.’
    • ‘Antibodies against these five antigens were tested in the sera of all workers and controls.’
    • ‘This is a complicated process involving antigens and antibodies.’
    • ‘The immune system of a human can differentiate more than one million different foreign proteins, or antigens.’
    • ‘Alternate methods of diagnosing pneumococcal disease are based on the detection of bacterial antigens in body fluids.’
    • ‘Once antibodies have been produced for a particular antigen they tend to remain in the body.’
    • ‘These cells have the potential to present tumour-specific antigens and thereby induce an immune response.’
    • ‘As described above, it allows antigenic variation in its antigens to evade the host immune system.’
    • ‘The protein acts like an antigen, prompting the immune cells to attack.’
    • ‘Finally, the target antigens of the locally produced antibodies have not been fully identified.’
    • ‘Early risk may suggest a mechanism involving an aberrant immune response to cereal antigens in an immature gut.’
    • ‘Previous transfusions may sensitize patients to foreign platelet antigens.’
    • ‘A healthy body develops antibodies, which hopefully resist the antigens, by binding on them.’
    • ‘We varied the surface density of antigens such that we could study the detachment of either single or multiple bonds.’


Early 20th century via German from French antigène(see anti-, -gen).