flagellum(redirected from axial filament)
Also found in: Thesaurus, Medical, Encyclopedia.
n. pl. fla·gel·la (-jĕl′ə)
1. A long, whiplike appendage that functions as a cellular organ of locomotion, found in certain bacteria, protozoans, and specialized eukaryotic cells such as motile sperm.
2. A small whip; a scourge.
[Latin, diminutive of flagrum, whip.]
n, pl -la (-lə) or -lums
1. (Biology) biology a long whiplike outgrowth from a cell that acts as an organ of locomotion: occurs in some protozoans, gametes, spores, etc
2. (Botany) botany a long thin supple shoot or runner
3. (Zoology) zoology the terminal whiplike part of an arthropod's appendage, esp of the antenna of many insects
[C19: from Latin: a little whip, from flagrum a whip, lash]
n., pl. -gel•la (-ˈdʒɛl ə)
1. Biol. a long lashlike appendage serving as an organ of locomotion in protozoa, sperm cells, etc.
2. Bot. a runner.
3. the upper portion of the antenna of an insect.
4. a whip or lash.
[1800–10; < Latin: whip]
A slender tail or part extending from some single-celled organisms, such as the dinoflagellates, that whips back and forth to produce movement.
A whiplike organelle of locomotion in sperm cells and some unicellular organisms.
Switch to new thesaurus
|Noun||1.||flagellum - a whip used to inflict punishment (often used for pedantic humor)|
whip - an instrument with a handle and a flexible lash that is used for whipping
|2.||flagellum - a lash-like appendage used for locomotion (e.g., in sperm cells and some bacteria and protozoa)|
eubacteria, eubacterium, true bacteria - a large group of bacteria having rigid cell walls; motile types have flagella
sperm, sperm cell, spermatozoan, spermatozoon - the male reproductive cell; the male gamete; "a sperm is mostly a nucleus surrounded by little other cellular material"