Cyanuric acid \Cyanuric acid\ (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]

	

	cyanuric acid
    n 1: a trimer of cyanic acid