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Webster 1913 Edition

Noun.

[From

, by transposition of letters.]

(Chem.)

A white crystalline nitrogenous substance (

C6H4N4O5

) obtained by the reduction of parabanic acid; – called also

leucoturic acid

oxalantin ‎(uncountable)

(organic chemistry) A nitrogenous substance, C₆H₄N₄O₅, obtained by the reduction of parabanic acid.