- a long, lashlike appendage serving as an organ of locomotion in protozoa, sperm cells, etc.
- a runner.
- (in an antenna) the whiplike portion above the basal joints.
- a whip or lash.
- a long whiplike outgrowth from a cell that acts as an organ of locomotion: occurs in some protozoans, gametes, spores, etc
- a long thin supple shoot or runner
- the terminal whiplike part of an arthropod's appendage, esp of the antenna of many insects
