See Also: urea(encyclopedia)
Urea(medicine)
urea(dictionary)
Urea(health)
Sterile urea(health)
urea stibamine(medicine)
urea peroxide(medicine)
urea cycle(medicine)
urea clearance(medicine)
herbicides, urea(medicine)

urea (iou)



urea noun. E19.
[French uree (with Latinized ending) from Greek ouron URINE or ourein urinate.]
Chemistry. A soluble crystalline compound, CO(NH2)2, which is the main nitrogenous breakdown product of protein metabolism in mammals and some other animals, is excreted in their urine, and has numerous industrial uses. Also called carbamide. E19.
A urea-formaldehyde plastic or resin. M20.
Comb.: urea cycle Biochemistry a cyclic metabolic pathway by which urea is formed in the liver; urea-formaldehyde adjective & noun (pertaining to or designating) a plastic, resin, or foam made by condensation of urea with formaldehyde, used esp. in cavity insulation; urea resin a synthetic resin derived from urea; a urea-formaldehyde resin.
ureal adjective (now rare) M19.
ure'ameter noun = UREOMETER L19.
urease noun (Biochemistry) an enzyme produced by certain bacteria and plants, which breaks down urea into carbon dioxide and ammonia L19.