Associations to the word «Ureas»

Wiktionary

UREA, noun. (biochemistry) (uncountable) A water-soluble organic compound, CO(NH2)2, formed by the metabolism of proteins and excreted in the urine.
UREA, noun. (chemistry) (countable) Any N-substituted derivative of urea, with the general formula (R1R2N)CO(NR3R4).

Dictionary definition

UREA, noun. The chief solid component of mammalian urine; synthesized from ammonia and carbon dioxide and used as fertilizer and in animal feed and in plastics.

Wise words

Four things come not back. The spoken word, the sped arrow, the past life, ad the neglected opportunity.
Arabian Proverb