kinocilium
noun
ki·no·cil·i·um
| \ ˌkī-nō-ˈsil-ē-əm
\
\
plural kinocilia\ -ē-ə
\
\
Medical Definition of kinocilium
: a motile cilium
especially
: one that occurs alone at the end of a sensory hair cell of the inner ear among numerous nonmotile stereocilia