/fleuh jel"euhm/ , n. , pl. flagella /-jel"euh/ , flagellums .
1. Biol. a long, lashlike appendage serving as an organ of locomotion in protozoa, sperm cells, etc.
2. Bot. a runner.
3. Also called clavola . Entomol. (in an antenna) the whiplike portion above the basal joints.
4. a whip or lash.
[ 1800-10; flagrum a whip, scourge ]