Competitive Enzyme-linked Immunosorbent Assay

**Semantic type:** Laboratory Procedure

**Definition:** A type of ELISA assay that uses a reference antigen to competitively bind labeled antibody against an antigen of interest. The strength of the signal interference caused by antibody bound to the reference antigen is used to determine the concentration of the antigen of interest.

**Synonyms:** - COMPETITIVE ELISA - Competitive ELISA - Competitive Immunoassay - Competitive Immunoassay - Inhibition ELISA - Inhibition ELISA