the GNU version of the Collaborative International Dictionary of English
n. The technical name for urea.
The Century Dictionary and Cyclopedia
n. A compound identical with urea, having the formula CO(NH2)2.
n. A general name for the derivatives of urea.
WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
n. the chief solid component of mammalian urine; synthesized from ammonia and carbon dioxide and used as fertilizer and in animal feed and in plastics
Word Usage
"In this model the ice grain was compressed by 40% and formed new C-N bonds, producing molecules such as carbamide (urea - CH4N2O), which is a natural molecule formed in the liver from ammonia produced by the de-amination of amino acids."