• Webster's Revised Unabridged Dictionary
    • n Oxalan (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.
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Century Dictionary and Cyclopedia
    • n oxalan Oxaluramide, NH2CONH.C2O2NH2, a crystalline compound made by treating oxaluric ester with alcoholic ammonia, and also by treating a dilute solution of alloxan with hydrocyanic acid and then with ammonia.
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Webster's Revised Unabridged Dictionary
From Alloxan, by transposition of letters