from The American Heritage® Dictionary of the English Language, 4th Edition

  • n. A laboratory technique that makes use of the binding between an antigen and its homologous antibody in order to identify and quantify the specific antigen or antibody in a sample.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. A test for the presence of a substance using the reaction of an antibody to its antigen, making use of the high selectivity of components of biological immune systems.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • n. identification of a substance (especially a protein) by its action as an antigen


from Wiktionary, Creative Commons Attribution/Share-Alike License

immuno- +‎ assay


  • By swabbing the walls with this immunoassay kit , of course!

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  • For about $80, you can get an EIA (or enzyme immunoassay), which determines whether your blood contains antibodies to hepatitis C. Doctors normally confirm a positive test result with a second antibody test called RIBA.

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  • Signs were frequently up, in bright neon colors, asking for young men and women to drink alcohol and give blood for an immunoassay, drink alcohol and enter a driving simulator, drink alcohol and take a quiz.

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  • The second test, known as the EIA enzyme immunoassay, takes from one to two weeks, and is usually the test found in most home kits.

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  • Serological tests such as enzyme-linked immunoassay (the "ELISA" or "EIA" methods) may demonstrate the presence of specific IgM antibodies to the virus.

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  • IgG and IgM antibodies may be detected in serum by enzyme-linked immunoassay (the "ELISA" or "EIA" methods) from about day six of illness.

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  • But that was using immunoassay and thin-layer chromatography.


  • The AIDS virus may be detected by two medical tests, the enzyme-linked immunoassay test ELISA or the confirmatory test, the Western blot.

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  • A good example is the immunoassay center, which was conceived as a research and production center.

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  • We are applying it, and it began as I said with the immunoassay center.

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