enzyme-linked immunosorbent assay

noun

: an in vitro method for quantifying an antigen or antibody concentration in which the test material is immobilized on a surface and exposed either to a complex of an enzyme linked to an antibody specific for the antigen or an enzyme linked to an antigen specific for the antibody followed by reaction of the enzyme with a substrate to yield a colored product corresponding to the concentration of the test material

called also ELISA

Word History

First Known Use

1976, in the meaning defined above

Medical Definition

enzyme-linked immunosorbent assay

noun

: a quantitative in vitro test for an antibody or antigen in which the test material is adsorbed on a surface and exposed either to a complex of an enzyme linked to an antibody specific for the antigen or an enzyme linked to an anti-immunoglobulin specific for the antibody followed by reaction of the enzyme with a substrate to yield a colored product corresponding to the concentration of the test material

called also ELISA