[im-yuh-noh-uh-sey, -as-ey, ih-myoo-]
any laboratory method for detecting a substance by using an antibody reactive with it.
Origin of immunoassay
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
immunol a technique of identifying a substance by its ability to bind to an antibody
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
A laboratory or clinical technique that uses the specific binding between an antigen and its homologous antibody to identify and quantify a substance in a sample.immunochemical assay
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
A laboratory technique that identifies and quantifies (usually in minute amounts) a protein such as a hormone or an enzyme, based on its ability to act as an antigen or antibody in a chemical reaction.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.