| peritricha | <zoology> 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. Origin: NL, fr. Gr. About +, hair. Source: Websters Dictionary (01 Mar 1998) |
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| peritrichal | 1. Relating to cilia or other appendicular organs projecting from the periphery of a cell. 2. Having flagella uniformly distributed over a cell; used especially with reference to bacteria. Synonym: peritrichal, peritrichate, peritrichic. Origin: peri-+ G. Thrix, hair (05 Mar 2000) |