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bacteria

[bak-teer-ee-uh] /bækˈtɪər i ə/
plural noun, singular bacterium
[bak-teer-ee-uh m] /bækˈtɪər i əm/ (Show IPA)
1.
ubiquitous one-celled organisms, spherical, spiral, or rod-shaped and appearing singly or in chains, comprising the Schizomycota, a phylum of the kingdom Monera (in some classification systems the plant class Schizomycetes), various species of which are involved in fermentation, putrefaction, infectious diseases, or nitrogen fixation.
Origin
1905-1910
1905-10; < New Latin < Greek baktḗria, plural of baktḗrion; see bacterium
Related forms
bacterial, adjective
bacterially, adverb
nonbacterial, adjective
nonbacterially, adverb
unbacterial, adjective
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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British Dictionary definitions for bacterially

bacteria

/bækˈtɪərɪə/
plural noun (sing) -rium (-rɪəm)
1.
a very large group of microorganisms comprising one of the three domains of living organisms. They are prokaryotic, unicellular, and either free-living in soil or water or parasites of plants or animals See also prokaryote
Derived Forms
bacterial, adjective
bacterially, adverb
Word Origin
C19: plural of New Latin bacterium, from Greek baktērion, literally: a little stick, from baktron rod, staff
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
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Word Origin and History for bacterially

bacteria

n.

1847, plural of Modern Latin bacterium, from Greek bakterion "small staff," diminutive of baktron "stick, rod," from PIE *bak- "staff used for support." So called because the first ones observed were rod-shaped. Introduced as a scientific word 1838 by German naturalist Christian Gottfried Ehrenberg (1795-1876).

Online Etymology Dictionary, © 2010 Douglas Harper
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bacterially in Medicine

bacteria bac·te·ri·a (bāk-tǐr'ē-ə)
n.
Plural of bacterium.


bac·te'ri·al adj.
The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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bacterially in Science
bacteria
  (bāk-tîr'ē-ə)   
Plural of bacterium.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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bacterially in Culture

bacteria definition


sing. bacterium

Microorganisms made up of a single cell that has no distinct nucleus. Bacteria reproduce by fission or by forming spores.

Note: Some bacteria are beneficial to humans (for example, those that live in the stomach and aid digestion), and some are harmful (for example, those that cause disease).
The American Heritage® New Dictionary of Cultural Literacy, Third Edition
Copyright © 2005 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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