Definition, Meaning & Synonyms
cilium
noun
/ˈsɪl.i.əm/
Definition
A cilium is a slender, hair-like structure that extends from the surface of certain cells and is involved in movement and sensation.
Examples
- The cilia on the surface of the respiratory cells help clear mucus and debris from the airways.
- In certain protozoa, cilia allow for swift movement through their aquatic environment.
Meaning
Cilia function as sensory organs or help in locomotion by creating waves that move fluid over the surface of cells.
Synonyms
- flagellum
- hair
- microvillus
