| parabanic | <chemistry> Pertaining to, or designating, a nitrogenous acid which is obtained by the oxidation of uric acid, as a white crystalline substance (C3N2H2O3); also called oxalyl urea. Origin: Gr. To pass over. Source: Websters Dictionary (01 Mar 1998) |
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| parabanic acid | The cyclic (end-to-end) amide anhydride of oxaluric acid; an oxidation product of uric acid. Synonym: oxalourea, parabanic acid. (05 Mar 2000) |