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]