A derivative of urea obtained by heating, eliminating one NH3 between two ureas. Used in protein determinations. SYN: carbamoylurea.
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bi·uret .bī-yə-'ret, 'bī-yə-. n a white crystalline compound N3H5C2O2 formed by heating urea
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bi·u·ret (biґu-rət) [bis- + urea] a derivative of urea, equivalent to two molecules of urea less one of ammonia (NH2CONHCONH2); it forms a colored chelate with copper sulfate in alkaline solution. See also under reaction. Called also allophanamide.Medical dictionary. 2011.