Immunoassay is a commonly used synonym for immunodetection. It refers to a laboratory technique that detects specific proteins or other molecules with high specificity and sensitivity, using specific antibodies. Other synonyms for immunodetection include immunochemistry, immunological assay, and immunoblotting. Immunofluorescence and immunohistochemistry are also used interchangeably with immunodetection, especially when referring to the detection of cellular targets in tissue samples. Enzyme-linked immunosorbent assay (ELISA) is another commonly used synonym for immunodetection used to detect the presence of specific proteins or other molecules in a sample. Regardless of the specific term used, immunodetection is a powerful tool used in both research and clinical settings for the early and precise diagnosis of diseases.