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bacteria

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noun bac·te·ria \bak-ˈtir-ē-ə\

Definition of bacteria

plural

bacteria

also

bacterias

  1. :  bacterium —not usually used technically



Usage Discussion of bacteria

Bacteria is regularly a plural in scientific and pedagogical use; in speech and in journalism it is also used as a singular, and it is sometimes pluralized as bacterias <caused by a bacteria borne by certain tiny ticks — Wall Street Journal> <more resistant to chlorine and elevated water temperatures than other bacterias — Allan Bruckheim, M.D., Chicago Tribune>. These journalistic uses are found in British as well as American sources.

Origin and Etymology of bacteria

plural of bacterium


First Known Use: 1881

Other Microbiology Terms


Medical Dictionary

1

bacteria

bac·te·ria

Medical Definition of bacteria

plural of bacterium


2

bacteria

play
noun bac·te·ria \bak-ˈtir-ē-ə\

Medical Definition of bacteria

  1. 1:  bacterium—not usually used technically <caused by a bacteria borne by certain tiny ticks—Wall Street Journal> <a single bacteria—there are roughly 200 in each cough—apparently can infect a person—Cheryl Clark>

  2. 2plural capitalized :  a domain in the system of classification dividing all organisms into three major domains of life that includes the prokaryotes that are bacteria but not those that are archaebacteria or archaea—compare eubacteria




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