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Bacteria are single-celled, or simple, organisms. Though small, bacteria are powerful and complex, and they can survive in extreme conditions. More »
Source: healthline.com

Bacteria - Simple English Wikipedia, the free encyclopedia


Bacteria are made up of one cell, so they are a kind of unicellular organism. They are among the ... The Simple English Wiktionary has a definition for: bacteria.

bacteria - Dictionary Definition : Vocabulary.com


Bacteria are microscopic living organisms, usually one-celled, that can be found everywhere. They can be dangerous, such as when they cause infection, ...

Bacteria | Define Bacteria at Dictionary.com


Bacteria definition, ubiquitous one-celled organisms, spherical, spiral, or rod- shaped and appearing singly or in chains, comprising the Schizomycota, a phylum ...

Definition: Bacteria is a minute unicellular organism that has no true nucleus. Some bacteria species cause diseases in fish, however others are beneficial and play a key role in the breakdown of toxic nitrogenous substances. The nitrogen cycle in the aquarium is base... More »
By Shirlie Sharpe, About.com Guide

Bacteria definition - MedicineNet - Health and Medical Information ...


Bacteria: Single-celled microorganisms that can exist either as independent (free -living) organisms or as parasites (dependent on another organism for life).

Bacteria dictionary definition | bacteria defined - YourDictionary


The definition of bacteria are microorganisms that are the basis of fermentation and infectious diseases. An example of bacteria are the organisms that cause ...

Bacteria - definition of bacteria by The Free Dictionary


Define bacteria. bacteria synonyms, bacteria pronunciation, bacteria translation, English dictionary definition of bacteria. n. Plural of bacterium. pl n , sing -rium 1.

Bacteria | Definition of bacteria by Merriam-Webster


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 ...

Bacterium | Definition of bacterium by Merriam-Webster


any one of a group of very small living things that often cause disease. Shrinkflation: how things get smaller but cost the same ». plural -ria \-ē-ə\ ...

Popular Q&A
Q: Definition of bacteria?
A: Affirmative action, which took effect March 6, 1961, provides advantages for people of a Read More »
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Q: What is the definition for bacteria?
A: Bacteria is the plural form of bacterium which is a unicellular prokaryotic microorganism that usually multiplies by cell division and has a cell wall that prov... Read More »
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Q: What is the definition of Bacteria Flagellum?
A: A flagellum is a long tail like structure that protrudes off the bacterium body. Read More »
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Q: What's the definition of bacteria?
A: Bacteria:1:microbiology) single-celled or noncellular spherical or spiral or Read More »
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Q: What's the definition of bacteria family?
A: bacteria family: a family of bacteria Read More »
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