cilium

/ˈsɪliəm/

Other forms: cilia

Definitions of cilium

1. noun

   a hairlike projection from the surface of a cell; provides locomotion in free-swimming unicellular organisms
   type of:

   cell organ, cell organelle, organelle

   a specialized part of a cell; analogous to an organ
2. noun

   any of the short curved hairs that grow from the edges of the eyelids
   synonyms: eyelash, lash

   type of:

   hair

   a covering for the body (or parts of it) consisting of a dense growth of threadlike structures (as on the human head); helps to prevent heat loss