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flagellum
(redirected from flagella)

   Also found in: Dictionary/thesaurus, Medical, Encyclopedia, Wikipedia 0.01 sec.

flagellum

(Plural flagella) small hairlike organ on the surface of certain cells. Flagella are the motile organs of certain protozoa and single-celled algae, and of the sperm cells of higher animals. Unlike cilia, flagella usually occur singly or in pairs; they are also longer and have a more complex whiplike action.

Each flagellum consists of contractile filaments producing snakelike movements that propel cells through fluids, or fluids past cells. Water movement inside sponges is also produced by flagella.



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? Mentioned in ? References in periodicals archive
 
Studies on the attachment of Leishmania flagella to sand fly midgut epithelium.
So follow that ancestral line down, furry paw to scaly foot, amphibious foot to fin to tail to pseudopodia, flagella, and cilia.
When the researchers shined a low-intensity visible light from the end of the track opposite the algae, the organisms swam toward the light, each cell beating its two flagella breaststroke-style.
 
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