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 ?
Datuk Seri Dzulkefly Ahmad said X-rays of the chests of the victims during critical stages of the disease suggested the infection was caused by microorganisms.
A vaccine contains material that resembles a disease-causing microorganism such as a weakened or dead microbe, its toxins, or one of its surface proteins.
3.3 Selection and test of microorganism from homemade biofertilizer:
Effective Microorganism (EM), generally in liquid form, contains a variety of lactic acid bacteria, yeasts, and phototrophic bacteria that can be applied as inoculants to increase the microbial diversity of soil ecosystem [12, 19-21].
She said that the laboratory tries to make a preliminary identification of the microorganism and to grow (culture) the microorganisms present in the samples.
The success opens the way for the development of basic technology that aims for microorganism material production using lignin, applications of which were difficult to date.
The sensitivity (mean inhibition zone) of both M1 and M2 miswak against all three types of the isolated microorganisms was also not similar, which may be due to the difference in the release of the constituents of miswak, variance in the membrane permeability of the microorganism, inactivation of the contents of miswak or change in its pH as concluded by Al Bayati et al8, Sher et al9 and Almas et al.6 The pH plays a vital role in the activity of miswak as seen by Almas et al6 in his study of evaluating antimicrobial activity of seven different chewing sticks.
Dr.Salma said about the causes of the disease that the bacteria are the most common microorganisms that cause pneumonia.
According to Nangolo, the use of additives is cut by 30% when an effective microorganism is used.
You're inoculated with a killed or modified microorganism (vaccine) that doesn't cause any disease.