Source : Webster's Revised Unabridged Dictionary (1913)

Isocyanuric \I`so*cy`a*nu"ric\, a. [Iso- + cyanuric.] (Chem.)
   Designating, or pertaining to, an acid isomeric with cyanuric
   acid, and called also fulminuric acid. See under
   {Fulminuric}.