Definify.com

Webster 1913 Edition

Noun.

(Chem.)

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

[Written also

ureid

ureide ‎(plural ureides)

(chemistry) 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