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spirillum

[spahy-ril-uh m]
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noun, plural spi·ril·la [spahy-ril-uh] /spaɪˈrɪl ə/. Bacteriology.
  1. any of several spirally twisted, aerobic bacteria of the genus Spirillum, certain species of which are pathogenic for humans.
  2. any of various similar microorganisms.
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Origin of spirillum

1870–75; < New Latin, equivalent to Latin spīr(a) (see spire2) + -illum diminutive suffix
Related formsspi·ril·lar, adjective
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for spirillar

Historical Examples

  • Unfortunately, the existence of spirillar infection of the blood was not known at the time.

    A System of Practical Medicine by American Authors, Vol. I

    Various


British Dictionary definitions for spirillar

spirillum

noun plural -la (-lə)
  1. any bacterium having a curved or spirally twisted rodlike bodyCompare coccus (def. 1), bacillus (def. 1)
  2. any bacterium of the genus Spirillum, such as S. minus, which causes ratbite fever
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Derived Formsspirillar, adjective

Word Origin

C19: from New Latin, literally: a little coil, from spīra a coil
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for spirillar

spirillum

n.

(plural spirilla), 1875, Modern Latin, diminutive of Latin spira (see spiral (adj.)). So called for their structure.

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Online Etymology Dictionary, © 2010 Douglas Harper

spirillar in Medicine

spirillar

(spī-rĭlər)
adj.
  1. S-shaped. Used of a bacterial cell.
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spirillum

(spī-rĭləm)
n. pl. spi•ril•la (-rĭlə)
  1. A member of the genus Spirillum.
  2. Any of various other spiral-shaped microorganisms.
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Spirillum

n.
  1. A genus of large, aerobic, gram-negative bacteria having an elongated spiral form and a tuft of flagella.
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The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.

spirillar in Science

spirillum

[spī-rĭləm]
Plural spirilla
  1. Any of various bacteria that are shaped like a spiral, such as the spirochete Treponema pallidum, which causes syphilis.
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The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.