A cilium, usually motile, having nine peripheral double microtubules and two single central ones. [kino- + cilium]

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ki·no·cil·i·um .kī-nō-'sil-ē-əm n, pl -cil·ia -ē-ə a motile cilium esp one that occurs alone at the end of a sensory hair cell of the inner ear among numerous nonmotile stereocilia

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ki·no·cil·i·um (ki″no-silґe-əm) pl. kinocilґia [kino- + cilium] a motile filament on the free surface of a cell; see cilia (def. 2). See also hair cells, under cell, and stereocilia.

Kinocilia and stereocilia on hair cells of the macula utriculi.

Medical dictionary. 2011.

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