cilium

cil·i·um

noun \ˈsil-ē-əm\

plural cil·ia \-ē-ə\

Definition of CILIUM

1

: eyelash

2

: a minute short hairlike process often forming part of a fringe; especially : one of a cell that is capable of lashing movement and serves especially in free unicellular organisms to produce locomotion or in higher forms a current of fluid