microorganism

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mi·cro·or·gan·ism

 (mī′krō-ôr′gə-nĭz′əm)
n.
An organism or infectious agent of microscopic or submicroscopic size, especially a bacterium or protozoan.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

microorganism

(ˌmaɪkrəʊˈɔːɡəˌnɪzəm)
n
(Microbiology) any organism, such as a bacterium, protozoan, or virus, of microscopic size
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014

mi•cro•or•gan•ism

(ˌmaɪ kroʊˈɔr gəˌnɪz əm)

n.
any organism too small to be viewed by the unaided eye, as bacteria or some fungi and algae.
[1875–80]
mi`cro•or•gan′ic
(-ɔrˈgæn ɪk)
adj.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.

mi·cro·or·gan·ism

(mī′krō-ôr′gə-nĭz′əm)
An organism that can be seen only with the aid of a microscope. Microorganisms include bacteria, protozoans, algae, and fungi. See Note at germ.
The American Heritage® Student Science Dictionary, Second Edition. Copyright © 2014 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

microorganism

any one of a large variety of microscopic or ultramicroscopic organisms, as bacteria, viruses, etc.
See also: Organisms
-Ologies & -Isms. Copyright 2008 The Gale Group, Inc. All rights reserved.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.microorganism - any organism of microscopic sizemicroorganism - any organism of microscopic size  
organism, being - a living thing that has (or can develop) the ability to act or function independently
animal, animate being, beast, creature, fauna, brute - a living organism characterized by voluntary movement
plant life, flora, plant - (botany) a living organism lacking the power of locomotion
monad - (biology) a single-celled microorganism (especially a flagellate protozoan)
intestinal flora - harmless microorganisms (as Escherichia coli) that inhabit the intestinal tract and are essential for its normal functioning
virus - (virology) ultramicroscopic infectious agent that replicates itself only within cells of living hosts; many are pathogenic; a piece of nucleic acid (DNA or RNA) wrapped in a thin coat of protein
moneran, moneron - organisms that typically reproduce by asexual budding or fission and whose nutritional mode is absorption or photosynthesis or chemosynthesis
bacteria, bacterium - (microbiology) single-celled or noncellular spherical or spiral or rod-shaped organisms lacking chlorophyll that reproduce by fission; important as pathogens and for biochemical properties; taxonomy is difficult; often considered to be plants
microbe, germ, bug - a minute life form (especially a disease-causing bacterium); the term is not in technical use
pathogen - any disease-producing agent (especially a virus or bacterium or other microorganism)
protoctist - any of the unicellular protists
protist, protistan - free-living or colonial organisms with diverse nutritional and reproductive modes
pilus - hairlike structure especially on the surface of a cell or microorganism
virulence, virulency - extreme harmfulness (as the capacity of a microorganism to cause disease); "the virulence of the plague"
transmitter, vector - any agent (person or animal or microorganism) that carries and transmits a disease; "mosquitos are vectors of malaria and yellow fever"; "fleas are vectors of the plague"; "aphids are transmitters of plant diseases"; "when medical scientists talk about vectors they are usually talking about insects"
microflora - microscopic plants; bacteria are often considered to be microflora
bacteremia, bacteriaemia, bacteriemia - transient presence of bacteria (or other microorganisms) in the blood
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.

microorganism

also micro-organism
noun
A minute organism usually producing disease:
The American Heritage® Roget's Thesaurus. Copyright © 2013, 2014 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Translations
mikroorganismus
mikroorganisme
mikro-organismi
מיקרואורגניזם
mikroorganizam
mikroorganisme
微生物

microorganism

[ˈmaɪkrəʊˈɔːgənɪzəm] Nmicroorganismo m
Collins Spanish Dictionary - Complete and Unabridged 8th Edition 2005 © William Collins Sons & Co. Ltd. 1971, 1988 © HarperCollins Publishers 1992, 1993, 1996, 1997, 2000, 2003, 2005

microorganism

[ˌmaɪkrəʊˈɔːgəˌnɪzm] nmicroorganismo
Collins Italian Dictionary 1st Edition © HarperCollins Publishers 1995

mi·cro·or·gan·ism

n. microorganismo, organismo que no puede verse a simple vista.
English-Spanish Medical Dictionary © Farlex 2012

microorganism

n microorganismo, microbio
English-Spanish/Spanish-English Medical Dictionary Copyright © 2006 by The McGraw-Hill Companies, Inc. All rights reserved.
References in periodicals archive ?
Summary: Chlorella is a microscopic organism that grows in fresh water.
The infection is caused by "a microscopic organism called Acanthamoeba, which is common in nature and is usually found in bodies of water" such as lakes and rivers, but also tap water, swimming pools, soil and air,Mirror Online reports.
Washington, April 25 ( ANI ): Researchers have said that microscopic organism play a very important role in ocean carbon cycling.
Experts say the only danger is to people who manage to get the microscopic organism way up their noses.
She and Dean are to be used as bearers of a microscopic organism, the “Pure,” which feeds on radiation—the radiation that is killing the Shee'a.
By this paradoxically self-conscious and casual process, the inside of the crates become little niches for objects, one of which is a big glob of wax (or plasticene?), crudely painted and frenetically assaulted with toothpicks, like a fifth grader's three-dimensional model of a microscopic organism. "The Collector" looks like a big spider web in which objects, including two pitchforks, small rocks, a large red plaster-and-string orb, and seashells, have gotten hopelessly stuck.
of Israel that aims to use a microscopic organism from Qteros to help process cellulose from municipal and agricultural solid waste.
Syphilis is caused by a microscopic organism called Treponema pallidum.
PLANKTON is a microscopic organism only slightly less intelligent than some football crowds.
"But we discovered e-coli 0157 is surviving by infecting a protozoa, a tiny microscopic organism, which can feed the bacteria nutrients - encouraging it to grow and spread.
[ClickPress, Thu Nov 01 2018] Chlorella is a microscopic organism that grows in fresh water.

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