penam en · NOUN
Pronunciation
- /ˈpɛnæm/
Etymology
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.
Meanings
- 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.
Forms
| Spelling | Features | Labels | Source |
|---|---|---|---|
| penams | Number=Plur | lexicographic |