Definitions for ureideˈyʊər iˌaɪd, -ɪd
Random House Webster's College Dictionary
u•re•ideˈyʊər iˌaɪd, -ɪd(n.)
an acyl urea.
Origin of ureide:
any compound, of general formula R-CO-NH-CO-NH or R-CO-NH-CO-NH-CO-R', formally derived by the acylation of urea
any one of the many complex derivatives of urea; thus, hydantoin, and, in an extended dense, guanidine, caffeine, et., are ureides