Definition of flagellum
plural fla·gel·laplay \-lə\ also fla·gel·lums
: any of various elongated filiform appendages of plants or animals: as a : the slender distal part of an antenna b : a long tapering process that projects singly or in groups from a cell and is the primary organ of motion of many microorganisms
Origin of flagellum
New Latin, from Latin, whip, shoot of a plant
First Known Use: 1852
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