flagellum
noun
- part of a cell of some organisms
Wiktionary
Pronunciation: /fləˈd͡ʒɛləm/
noun
Etymology: From Latin flagellum (“whip”), diminutive of flagrum.
- In protists, a long, whiplike membrane-enclosed organelle used for locomotion or feeding.
- In bacteria, a long, whiplike proteinaceous appendage, used for locomotion.
- A whip.