Definition, Meaning & Synonyms

cilia

Noun

/ˈsɪ.li.ə/

Definition

Cilia are microscopic hair-like structures that extend from the surface of certain cells and are involved in movement or sensory functions.

Examples

The respiratory tract is lined with cilia that help move mucus and trapped particles out of the lungs.
In paramecia, cilia beat in coordinated waves to help the organism swim.

Meaning

In biology, cilia are small, hair-like projections that can be found on the surface of some eukaryotic cells. They play crucial roles in locomotion, feeding, and sensory perception.