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Word of the Day Wednesday, June 10, 2026

cilia

/ˈsɪliə/ noun · British & US
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What does cilia mean?

noun

A small, hair-like structure, especially one of the many fine filaments that project from the surface of a cell, often involved in movement or sensation. In biology, cilia are also found on the surface of certain cells, such as those lining the respiratory tract, where they help to move mucus and debris.

Example

"The cilia on the surface of the cell helped it to move through the fluid."

Definition generated by AI and curated by RJS Tech Solutions LLP.

Synonyms for cilia

Rhymes with cilia

Etymologically related