Chilomastix
noun
Chi·lo·mas·tix
| \ ˌkī-lō-ˈmas-tiks
\
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Medical Definition of Chilomastix
: a genus of pear-shaped, flagellated protozoans that usually occur commensally in the intestines of various vertebrates and includes one (Chilomastix mesnili) occurring as a nonpathogenic parasite in the cecum and colon of humans