What does spirillum mean?

Definitions for spirillum
spaɪˈrɪl əm; -ˈrɪl əspir·il·lum

This dictionary definitions page includes all the possible meanings, example usage and translations of the word spirillum.

Princeton's WordNet

  1. spirillumnoun

    spirally twisted elongate rodlike bacteria usually living in stagnant water

  2. spirillum, spirillanoun

    any flagellated aerobic bacteria having a spirally twisted rodlike form


  1. Spirillumnoun

    A species of bacteria (Borrelia recurrentis, also known as Obermeier's spirillum), once believed to belong to the genus Spirillum, which causes relapsing fever.


  1. spirillumnoun

    Any of various aerobic bacteria of the genus Spirillum, having an elongated spiral form and bearing a tuft of flagella.

  2. spirillumnoun

    Any of various other spiral-shaped microorganisms.


  1. Spirillum

    Spirillum is a genus of Gram-negative bacteria in the family Spirillaceae of the Nitrosomonadales of the Betaproteobacteria. There are two species of Spirillum with validly or effectively published names - Spirillum winogradskyi and Spirillum volutans.Other "species" classified as Spirillum such as "Spirillum minus", "Spirillum pleomorphum", and "Spirillum pulli" are of uncertain phylogeny and in any case, these are names that have never been validly or effectively published and thus have no standing in nomenclature.

Webster Dictionary

  1. Spirillumnoun

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

  2. Etymology: [NL., dim. of L. spira a coil.]


  1. Spirillum

    Spirillum in microbiology refers to a bacterium with a cell body that twists like a spiral. It is the third distinct bacterial cell shape type besides coccus and bacillus cells.

Chambers 20th Century Dictionary

  1. Spirillum

    spī-ril′um, n. a genus of bacteria with cylindrical spirally twisted cells:—pl. Spirill′a.

U.S. National Library of Medicine

  1. Spirillum

    A genus of gram-negative, curved and spiral-shaped bacteria found in stagnant, freshwater environments. These organisms are motile by bipolar tufts of flagella having a long wavelength and about one helical turn. Some species of Spirillum cause a form of RAT-BITE FEVER.

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  1. Chaldean Numerology

    The numerical value of spirillum in Chaldean Numerology is: 4

  2. Pythagorean Numerology

    The numerical value of spirillum in Pythagorean Numerology is: 3


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"spirillum." Definitions.net. STANDS4 LLC, 2023. Web. 27 May 2023. <https://www.definitions.net/definition/spirillum>.

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