Chem. Also ureid. [f. URE-A + -IDE, -ID4.] A derivative of urea containing acid radicles.
1857. Miller, Elem. Chem., Org., 617. Urea likewise gives rise to the formation of a class of compounds analogous to the amides, forming substances which have been called ureides.
1867. Bloxam, Chem., 620. They are, therefore, sometimes styled ureides, and sometimes compound ureas.
1884. Encycl. Brit., XVII. 519/2. Ureids are a class of bodies which are related to urea as amido-bodies are to ammonia.
