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Webster 1913 Edition

Noun.

[From

, 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

oxalan ‎(uncountable)

(chemistry) A complex nitrogenous substance, C₃N₃H₅O₃, obtained from alloxan (or when urea is fused with ethyl oxamate).