immunoassay

[ im-yuh-noh-uh-sey, -as-ey, ih-myoo- ]

noun

1. any laboratory method for detecting a substance by using an antibody reactive with it.

immunoassay

/ ˌɪmjʊnəʊˈæseɪ /

noun

1. immunol a technique of identifying a substance by its ability to bind to an antibody

immunoassay

/ ĭm′yə-nō-ăs′ā,ĭ-myo̅o̅′- /

1. 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.

Derived Forms

• ˈimmunoˌassayist, noun

Other Words From

• immu·no·as·saya·ble adjective

Word History and Origins

Origin of immunoassay¹

First recorded in 1955–60; immuno- + assay

Example Sentences

Some experts have also questioned the accuracy of the simple test used to measure insulin in all three of the cases, known as the immunoassay method.

From BBC

It is called an immunoassay test, and works by using antibodies to detect and measure substances.

From BBC

Strip testing, also known as “immunoassay” testing, involves diluting drugs in a certain amount of water and dipping a test strip into the mixture, according to DanceSafe, a nonprofit test kit manufacturer.

From Seattle Times

Quanterix, a company in Billerica, Mass., has developed an immunoassay that detects amyloid and tau in conjunction with other neurological markers and inflammatory proteins.

From Scientific American

Abbott Labs’ Architect immunoassay provided a less precise reading of neutralizing antibody activity in each sample, they found.

From Los Angeles Times