Last modified on 22 July 2014, at 22:53

bacterium

EnglishEdit

cut-away view of a bacterium
Shapes of bacteria

EtymologyEdit

From New Latin, from Ancient Greek βακτήριον (baktḗrion, small staff) + -ium.

PronunciationEdit

  • IPA(key): /bækˈtɪəɹ.ɪəm/
  • (file)

NounEdit

bacterium (plural bacteria)

  1. (microbiology) A single celled organism with no nucleus.
    • 2013 July 20, “Welcome to the plastisphere”, The Economist, volume 408, number 8845: 
      Plastics are energy-rich substances, which is why many of them burn so readily. Any organism that could unlock and use that energy would do well in the Anthropocene. Terrestrial bacteria and fungi which can manage this trick are already familiar to experts in the field.

Usage notesEdit

  • In most formal writing, bacterium is the singular form of the noun, and bacteria the plural form. This is in accord with the word's Latin etymology. However, in ordinary speech, some speakers use bacteria as a singular, with plural either bacteria or bacterias. This is usually considered incorrect.

HyponymsEdit

HypernymsEdit

Derived termsEdit

TranslationsEdit

External linksEdit

See alsoEdit


LatinEdit

Latin Wikipedia has an article on:

Wikipedia la

PronunciationEdit

NounEdit

bacterium n (genitive bacteriī); second declension

  1. bacterium

InflectionEdit

Second declension neuter.

Number Singular Plural
nominative bacterium bacteria
genitive bacteriī bacteriōrum
dative bacteriō bacteriīs
accusative bacterium bacteria
ablative bacteriō bacteriīs
vocative bacterium bacteria