| Peptostreptococcus putridus | A species found in the human mouth and intestinal tract but especially in the human vagina. (05 Mar 2000) |
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| peptotoxine | <physiology> A toxic alkaloid found occasionally associated with the peptones formed from fibrin by pepsinhydrochloric acid. Origin: Peptone + toxic + -ine. Source: Websters Dictionary (01 Mar 1998) |