Medical Dictionary
Peritricha
noun pl Pe·rit·ri·cha \pə-ˈri-tri-kə\
Medical Definition of PERITRICHA
: an order of the class Ciliata comprising protozoans with an enlarged disklike ciliated anterior end leading to the cytostome via a counterclockwise zone near the mouth and with reduced body ciliation and often being attached to the substrate by a contractile stalk
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