pyogenes

pyo- + -genēs (“producing”), from Ancient Greek πύον (púon, “pus”) + γεννάω (gennáō, “to produce”)

pyogenēs (neuter pyogenes or pyogenēs); third-declension one-termination adjective (Greek-type)

1. (New Latin) pyogenic, pus-producing; A specific epithet for several pyogenic bacteria

• Used exclusively as a taxonomic epithet and thus normally in the nominative singular; other inflections may be theoretical or rarely found.

Third-declension one-termination adjective (Greek-type).

¹It is unknown if Classical Latin preserved (or would have preserved) the shortness of the original Greek short ending.
²It is unknown whether adjectives of this type would use i-stem or consonant-stem endings in Classical Latin: the relevant forms are not attested. Depending on the word, either ending or both may be attested in New Latin.

• Actinomyces pyogenes
• Arcanobacterium pyogenes
• Corynebacterium pyogenes
• Streptococcus pyogenes

• pyogenicus
• pyogenus