Oxalan \Ox"a*lan\, n. [From {Alloxan}, by transposition of
letters.] (Chem.)
A complex nitrogenous substance {C3N3H5O3} obtained from
alloxan (or when urea is fused with ethyl oxamate), as a
stable white crystalline powder; -- called also
{oxaluramide}.
[1913 Webster]