flagellum

(redirected from Bacterial flagella)
Also found in: Dictionary, Thesaurus, Encyclopedia.

flagellum

 [flah-jel´um] (pl. flagel´la) (L.)
a long, mobile, whiplike appendage arising from a basal body at the surface of a cell, serving as a locomotor organelle; in eukaryotic cells, flagella contain nine pairs of microtubules arrayed around a central pair; in bacteria, they contain tightly wound strands of flagellin.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.

fla·gel·lum

, pl.

fla·gel·la

(flă-jel'ŭm, -ă),
A whiplike locomotory organelle of constant structural arrangement consisting of nine double peripheral microtubules and two single central microtubules; it arises from a deeply staining basal granule, often connected to the nucleus by a fiber, the rhizoplast. Although characteristic of the protozoan class Mastigophora, comparable structures are commonly found in many other groups, for example, in sperm.
[L. dim. of flagrum, a whip]
Farlex Partner Medical Dictionary © Farlex 2012

flagellum

(flə-jĕl′əm)
n. pl. fla·gella (-jĕl′ə)
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.
The American Heritage® Medical Dictionary Copyright © 2007, 2004 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved.

fla·gel·lum

, pl. flagella (flă-jel'ŭm, -ă)
A whiplike locomotory organelle of constant structural arrangement consisting of nine double peripheral microtubules and two single central microtubules; it arises from a deeply staining basal granule, often connected to the nucleus by a fiber, the rhizoplast.
[L. dim. of flagrum, a whip]
Medical Dictionary for the Health Professions and Nursing © Farlex 2012

flagellum

A long, whip-like, filamentary process used for locomotion and present on a number of PROTOZOA and other organism, especially the class Mastigophora that includes Trichomonas vaginalis , a common cause of vaginal discharge, and Trypanosma species that cause TRYPANOSOMIASIS.
Collins Dictionary of Medicine © Robert M. Youngson 2004, 2005

flagellum

(pl. flagella) a fine, hair-like process of a cell, associated with locomotion in unicellular organisms. The eukaryotic flagellum is similar in structure to the CILIUM; however, it can be distinguished from cilia by its occurrence in smaller numbers and by generally being longer. The prokaryotic flagellum has a simpler structure, consisting of a filament made out of protein subunits called flagellin, arranged in several chains to form a helix around a hollow core. The filament is anchored through a rotating hook and a basal body to the bacterial cell membrane and cell wall. The number of flagella may vary from one to many, depending on the bacterial species. flagella occur in the flagellates, in most motile gametes, in ZOOSPORES, in BACTERIA and occasionally in METAZOANS, as in the ENDODERM of some COELENTERATES.
Collins Dictionary of Biology, 3rd ed. © W. G. Hale, V. A. Saunders, J. P. Margham 2005

fla·gel·lum

, pl. flagella (flă-jel'ŭm, -ă)
Whiplike locomotory organelle of constant structural arrangement consisting of nine double peripheral microtubules and two single central microtubules.
[L. dim. of flagrum, a whip]
Medical Dictionary for the Dental Professions © Farlex 2012
References in periodicals archive ?
(19) Shin-lchi, Aizawa, "Bacterial Flagella and Type III Secretion Systems." FEMS Microbiology Letters 202:157-164.
Previously, the smallest molecular motors scientists had studied were those that drive bacterial flagella. F1-ATPase is less than one-tenth that size.