The Western blot test is a widely used laboratory technique for detecting specific proteins in biological samples. However, there are several other terms used to describe this technique that might be useful to know, including immunoblot, protein immunoblot, and Western immunoblot. These terms are often used interchangeably with Western blot test and refer to the same process of separating proteins using gel electrophoresis and then transferring them onto a membrane for detection with specific antibodies. Other related terms include Western blotting, Western analysis, and protein blotting. Although these terms can be confusing, they all ultimately refer to the same technique used for protein detection.