Chem. [f. CARB- + AMIDE.] Analytical name of the organic compound UREA, CO·2(NH2), as a primary diamide of Carbonyl. Hence Sulpho-carbamide or Sulphur urea, in which CS takes the place of CO.
Also Carbamic [see AMIC] a., related to carbamide, as in Carbamic acid, CO·NH2·OH, Carbamic ethers. Carbamate, a salt of carbamic acid, as Ammonium carbamate, CO·NH2·O·NH4.
1865. Mansfield, Salts, 367. The compound ‘Carbamide’ is not yet known in the separate state.
1877. Watts, Fownes’ Chem., II. 391. Carbamide or Urea … was the first instance of the artificial formation of a product of the living organism.
1869. Roscoe, Elem. Chem., xxxv. 382. Carbamic Acid.
