\Cy"a*nate\ (s?"?-n?t), n. [Cf. F. cuanate. See
{Cyanic}.] (Chem.)
A salt of cyanic acid.
{Ammonium cyanate} (Chem.), a remarkable white crystalline
   substance, {NH4.O.CN}, which passes, on standing, to the
   organic compound, urea, {CO.(NH2)2}.