ureide

Any of various derivatives of urea.

A compound of urea with an acid radical. The ureides include a large number of urea-derivatives of very complex structure.

Any one of the many complex derivatives of urea; thus, hydantoin, and, in an extended dense, guanidine, caffeine, et., are ureides.

any compound, of general formula R-CO-NH-CO-NH2 or R-CO-NH-CO-NH-CO-R’, formally derived by the acylation of urea