beta-lactam

短语

[医]β-内酰胺，乙内酰胺

词形变化

beta-lactams 复数 beta-lactams

别名

β-lactam betalactam

释义与例句

n.
  1. 1.

    A lactam having a four-membered ring structure; a structural element of many antibiotics such as penicillin.

    化学

词源

Etymology tree Proto-Semitic *bayt- Phoenician 𐤁𐤕 (bt)bor. Ancient Greek βῆτᾰ (bêtă)bor. English beta Latin lacder. English lacto- German Ketonbor. English ketone English -one English lactone Egyptian jmnbor. Ancient Greek Ᾰ̓́μμων (Ắmmōn)bor. Latin Ammōn Latin ammoniacusder. English ammonia Proto-Indo-European *dʰeh₁-der. Latin -idusder. English -ide English amide English lactam English beta-lactam From beta + lactam, where beta refers to the position of the carbon atom to which the nitrogen is attached.

来源：wiktionary