a. [ Cyanic + uric: Cf. F. cyanurique. ] (Chem.) Pertaining to, or derived from, cyanic and uric acids. [ 1913 Webster ]

(Chem.), an organic acid, C3O3N3H3, first obtained by heating uric acid or urea, and called pyrouric acid; afterwards obtained from isocyanic acid. It is a white crystalline substance, odorless and almost tasteless; -- called also tricarbimide. [ 1913 Webster ]

a. [ Iso- + cyanuric. ] (Chem.) Designating, or pertaining to, an acid isomeric with cyanuric acid, and called also fulminuric acid. See under Fulminuric. [ 1913 Webster ]