Also found in: Dictionary, Thesaurus, Legal, Financial, Acronyms, Encyclopedia.
Related to immunoradiometric assay: radioimmunoassay
an assay that differs from conventional radioimmunoassay in that the compound to be measured combines directly with radioactively labeled antibodies.
immunoradiometric assayAbbreviation: IRMA
Radioassay in which an antibody is labeled with a radioactive tracer. Antigens are detected when they bind, reversibly, to the antibody.
See also: assay