clos·trid·i·um  (kl ŏ-str ĭd ē- əm)
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n. pl. clos·trid·i·a (- ē- ə) Any of various rod-shaped, spore-forming, chiefly anaerobic bacteria of the genus Clostridium, such as certain nitrogen-fixing species found in soil and those causing botulism and tetanus.
[New Latin Clōstridium, genus name, from Greek klōstēr, klōstr-, spindle, from klōthein, to spin.]
clos·tridi·al (-əl) adj. |