(adj) protected by trademark or patent or copyright; made or produced or distributed by one having exclusive rights, Ant. nonproprietary, Example:`Tylenol' is a proprietary drug of which `acetaminophen' is the generic form
n.; pl.Proprietaries [ L. proprietarius: cf. F. propriétaire. See Propriety, and cf. Proprietor. ] 1. A proprietor or owner; one who has exclusive title to a thing; one who possesses, or holds the title to, a thing in his own right. Fuller. [ 1913 Webster ]
2. A body proprietors, taken collectively. [ 1913 Webster ]
3. (Eccl.) A monk who had reserved goods and effects to himself, notwithstanding his renunciation of all at the time of profession. [ 1913 Webster ]