Definitions

from The American Heritage® Dictionary of the English Language, 4th Edition

  • n. Any of various aerobic bacteria of the genus Spirillum, having an elongated spiral form and bearing a tuft of flagella.
  • n. Any of various other spiral-shaped microorganisms.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. Any of various aerobic bacteria of the genus Spirillum, having an elongated spiral form and bearing a tuft of flagella.
  • n. Any of various other spiral-shaped microorganisms.

from the GNU version of the Collaborative International Dictionary of English

  • n. A genus of common motile microörganisms (Spirobacteria) having the form of spiral-shaped filaments. One species is said to be the cause of relapsing fever.

from The Century Dictionary and Cyclopedia

  • n. A genus or form-genus of Schizomycetes or bacteria, having cylindrical or somewhat compressed spirally twisted cells.
  • n. A bacterium of the genus Spirillum.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • n. spirally twisted elongate rodlike bacteria usually living in stagnant water
  • n. any flagellated aerobic bacteria having a spirally twisted rodlike form

Etymologies

New Latin Spīrillum, genus name, diminutive of Latin spīra, coil; see spire2.
(American Heritage® Dictionary of the English Language, Fourth Edition)

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