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flagellum

Line breaks: fla¦gel|lum
Pronunciation: /fləˈdʒɛləm
 
/

Definition of flagellum in English:

noun (plural flagella /-lə/)

Biology
A slender thread-like structure, especially a microscopic whip-like appendage which enables many protozoa, bacteria, spermatozoa, etc. to swim.
Example sentences
  • Development of the spermatid flagellum begins immediately after meiosis.
  • This study was designed to learn how well the flagella of groups of bacteria might move fluid in a microscopic environment.
  • Cilia and flagella are hairlike organelles extending from the cell surface.

Origin

early 19th century (denoting a whip or scourge): from Latin, diminutive of flagrum 'scourge'.

Derivatives

flagellar

1
adjective
Example sentences
  • In most cases, this was confirmed by the observation of the flagellar axoneme in additional serial sections.
  • If you knock out the flagella motor then the flagella is paralysed and flagellar secretion continues, but at reduced rate.
  • The flagellar filament, the bacterial organelle of motility, is the smallest rotary propeller known.

Definition of flagellum in:

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