penam

名词 n.
中文释义

英文释义

名词 n.
  1. A bicyclic ring system containing a beta-lactam moiety fused with a five-member thiazolidine ring; the common core skeleton of the penicillin subclass of beta-lactam antibiotics.

词形变化

penams plural

词源

Etymology tree
Proto-Indo-European *pes-
Proto-Indo-European *pes-ni-s
Proto-Italic *peznis
Latin pēnis
Proto-Indo-European *-lós
Proto-Indo-European *-elós
Proto-Italic *-elos
Proto-Italic *-kelos
Latin -culus
Latin pēniculus
▲
Proto-Italic *-elos
Latin -lus
Latin -illum
Latin pēnicillum
Translingual -ium
Translingual Penicillium
Proto-Indo-European *-nós
Proto-Indo-European *-iHnos
Proto-Italic *-īnos
Latin -īnusder.
Old French -inbor.
Middle English -in
English -ineclip.
English -in
English penicillin
Latin lacder.
English lacto-
German Ketonbor.
English ketone
English -one
English lac(tone)
Egyptian jmnbor.
Ancient Greek Ᾰ̓́μμων (Ắmmōn)bor.
Latin Ammōn
Latin ammoniacusder.
English ammonia
Proto-Indo-European *dʰeh₁-der.
Proto-Italic *-iðos
Latin -idusder.
English -ide
English am(ide)
English lactam
blend
English penam
Blend of penicillin + lactam.
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