معنی کلمه :‌ congo red

1. (Med.) Of or pertaining to purpura. Dunglison. 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. Note: Purpuric acid was formerly used to designate murexan. See Murexan.