Purpuric \Pur*pu"ric\, a. [Cf. F. purpurique.] [1913 Webster] 1. (Med.) Of or pertaining to purpura. --Dunglison. [1913 Webster] 2. (Chem.) Pertaining to or designating, a nitrogenous acid contained in uric acid. It is not known in the pure state, but forms well-known purple-red compounds (as murexide), whence its name. [1913 Webster] Note: Purpuric acid was formerly used to designate murexan. See {Murexan}. [1913 Webster]