a, e, r, u are letters that make 'urea'
re, Ea, Ur, Re are words within 'urea'
ureal, ureas are words created by adding a letter to 'urea'
1 possible definitions for 'urea'
Under this definition, urea is a noun and has the following properties:
carbamide has the same meaning as urea
'urea' can be a type of organic compound.