immunoblotting Syllabification: (im·mu·no·blot·ting)Pronunciation: /ˌimyənōˈblätiNG, iˌmyo͞o-, /Definition of immunoblotting noun a technique for analyzing or identifying proteins in a mixture, involving separation by electrophoresis followed by staining with antibodies. immunoblotting in other Oxford dictionaries Definition of immunoblotting in the British & World English dictionary