1. <medicine> Of or pertaining to purpura.

2. <chemistry> 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.

Purpuric acid was formerly used to designate murexan. See Murexan.

Origin: Cf. F. Purpurique.

(01 Mar 1998)