any anaerobic typically rod-shaped bacterium of the genus Clostridium, occurring mainly in soil, but also in the intestines of humans and animals: family Bacillaceae. The genus includes the species causing botulism and tetanus
clostridial, clostridian, adjective
C20: from New Latin, literally: small spindle, from Greek klōstēr spindle, from klōthein to spin; see -ium
Clostridium Clos·trid·i·um (klŏ-strĭd'ē-əm) n. A genus of rod-shaped, spore-forming, chiefly anaerobic bacteria including the nitrogen-fixing bacteria found in soil and those causing botulism and tetanus.