Enzyme Immunoassay

**Semantic type:** Laboratory Procedure

**Definition:** Any of several immunoassay methods that use an enzyme covalently linked to an antigen or antibody as a label; the most common types are enzyme-linked immunosorbent assay (ELISA) and enzyme-multiplied immunoassay technique (EMIT).

**Synonyms:** - EIA - Immunologic, Enzyme Linked Immunoassay