Allergy and immunology/Definition
In medicine medical specialty concerned with the hypersensitivity of the individual to foreign substances and protection from the resultant infection or disorder; may be a subspecialty of internal medicine or pediatrics; also includes the biological scientific study of the immune system and the development of laboratory support for immune phenomena
This definition is at least in part based on: Anonymous (2015), Allergy and immunology (English). Medical Subject Headings. U.S. National Library of Medicine.