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Webster 1913 Edition
Peritricha
‖
Pe-rit′ri-cha
,Noun.
pl.
[NL., fr. Gr.
περί
about + [GREEK], [GREEK], hair.] (Zool.)
A division of ciliated Infusoria having a circle of cilia around the oral disk and sometimes another around the body. It includes the vorticellas. See
Vorticella
.