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flagellum

[fluh-jel-uh m] /fləˈdʒɛl əm/
noun, plural flagella
[fluh-jel-uh] /fləˈdʒɛl ə/ (Show IPA),
flagellums.
1.
Biology. a long, lashlike appendage serving as an organ of locomotion in protozoa, sperm cells, etc.
2.
Botany. a runner.
3.
Also called clavola. Entomology. (in an antenna) the whiplike portion above the basal joints.
4.
a whip or lash.
Origin of flagellum
1800-1810
1800-10; < Latin: whip, lash, diminutive of flagrum a whip, scourge
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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British Dictionary definitions for flagellum

flagellum

/fləˈdʒɛləm/
noun (pl) -la (-lə), -lums
1.
(biology) a long whiplike outgrowth from a cell that acts as an organ of locomotion: occurs in some protozoans, gametes, spores, etc
2.
(botany) a long thin supple shoot or runner
3.
(zoology) the terminal whiplike part of an arthropod's appendage, esp of the antenna of many insects
Derived Forms
flagellar, adjective
Word Origin
C19: from Latin: a little whip, from flagrum a whip, lash
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Word Origin and History for flagellum
n.

1852, in reference to microbes, from Latin flagellum "whip, scourge," diminutive of flagrum "whip," from PIE root *bhlag- "to strike."

Online Etymology Dictionary, © 2010 Douglas Harper
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flagellum in Medicine

flagellum fla·gel·lum (flə-jěl'əm)
n. pl. fla·gel·la (-jěl'ə)
A threadlike appendage, especially a whiplike extension of certain cells or organisms that functions as an organ of locomotion.


fla·gel'lar (-jěl'ər) adj.
The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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flagellum in Science
flagellum
  (flə-jěl'əm)   
Plural flagella
A slender whiplike part extending from some single-celled organisms, such as the dinoflagellates, that moves rapidly back and forth to impart movement to the organism.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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