urea

名词 n.
中文释义
英 /jʊˈɹiːə/|/ˈjʊəɹɪə/   

英文释义

名词 n.
  1. A water-soluble organic compound, CO(NH₂)₂, formed by the metabolism of proteins and excreted in the urine. uncountable
    — Five of them — Iran, Saudi Arabia, Qatar, the United Arab Emirates and Bahrain — supply more than a third of the world’s urea, an important nitrogen fertilizer, and nearly a quarter of another one, ammonia. […] Over the past week, the price of urea sold in Egypt, a market that economists track closely, climbed more than 35 percent.
  2. Any N-substituted derivative of urea, with the general formula (R₁R₂N)CO(NR₃R₄). countable

词形变化

ureas plural

词汇关系

近义词
carbamide
衍生词
alkylurea alpha-naphthylthiourea bisurea bromerguride bromovalerylurea carbamylurea carburazepam diallylurea dicyclohexylurea dimethylurea diphenylurea glibornuride glyburide glycolylurea hydroxyurea imidazolidinyl urea isourea malonylurea methylol urea nitrosoethylurea nitrosourea nitrourea nonurea oligourea phenylthiourea polyurea pseudourea selenourea sulfonylurea sulfourea suramin tetramethylurea thiourea triurea uraemia urea cycle urea-formaldehyde ureagenesis ureal urealytic ureameter ureametry urease ureic ureido- uremia
相关词
biuret

词源

Etymology tree
Proto-Indo-European *h₁wers-der.
Ancient Greek οὐρέω (ouréō)
Ancient Greek οὖρον (oûron)der.
French uréeder.
New Latinder.
English urea
From New Latin, from French urée, from Ancient Greek οὖρον (oûron, “urine”).
0 次浏览 数据来源: Wiktionary