nonproprietary name /-prəprī″əter′ē/ [L, non + proprietas, owner, nomen, name] , the chemical or generic name of a drug or device, as distinguished from a brand name or trademark. A nonproprietary name may be indicated by the letters USAN, for United States Adopted Names, or by INN, for International Nonproprietary Names, used in Canada and elsewhere. See also USAN.
