microorganism

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microorganism

 [mi″kro-or´gah-nizm]
a microscopic organism; those of medical interest include bacteria, fungi, and protozoa. Viruses are often classified as microorganisms, although they are sometimes excluded because they are not cellular and they are unable to replicate without a host cell.

mi·cro·or·gan·ism

(mī'krō-ōr'gan-izm),
A microscopic organism (plant or animal).

microorganism

/mi·cro·or·gan·ism/ (-or´gah-nizm) a microscopic organism; those of medical interest include bacteria, fungi, and protozoa. Viruses are often included, but are sometimes excluded because they are not cellular and are unable to replicate without a host cell.

microorganism

[-ôr′gəniz′əm]
Etymology: Gk, mikros + organon, instrument
any tiny, usually microscopic entity capable of carrying on living processes. It may be pathogenic. Kinds of microorganisms include bacteria, fungi, protozoan, and viruses.

microorganism

An organism detected by microscopy—e.g., viruses, bacteria, fungi and intracellular parasites (protozoans).

microorganism

 A organism detected by microscopy–eg, viruses, bacteria, fungi and intracellular parasites–protozoans; bug

mi·cro·or·gan·ism

(mī'krō-ōr'găn-izm)
A microscopic organism (plant or animal).

microorganism

or

microbe

any microscopic organism such as a BACTERIUM, FUNGUS, PROTOZOAN, microscopicALGA or member of the ARCHAEA.

Microorganism

An organism (life form) that is too small to be seen with the naked eye.

microorganism

; MO generic term denoting bacteria, fungi, rickettsiae and viruses

mi·cro·or·gan·ism

(mī'krō-ōr'găn-izm)
A microscopic organism (plant or animal).

microorganism

(mī´krō ōr´gənizəm),
n a microscopic living organism, such as a bacterium, virus, rickettsia, yeast, or fungus. These may exist as part of the normal flora of the oral cavity without producing disease. With disturbance of the more or less balanced interrelationship among the organisms or between the organisms and host resistance, individual forms may overgrow and induce disease in the host's tissues. Those foreign to the individual may invade and produce pathologic processes.

microorganism

a microscopic organism; those of veterinary interest include bacteria, rickettsiae, viruses, fungi and protozoa.
References in periodicals archive ?
From the original single-celled organisms, living things evolved over billions of years into the millions of species of plants, animals and microbes which populate our planet Earth.
Bacteria are tiny, single-celled organisms that can cause disease in humans through infection.
Although the study involved only single-celled organisms, Snell indicates that the use of two different proteins in the two-step fertilization process may be the case in all species.
The firm develops, produces and licenses the encapsulation of active ingredients in single-celled organisms, in particular yeast.
Although polychaetes and other multicellular animals are known to have interesting life cycles, what about the single-celled organisms of the phytoplankton?
Many of the patents relate to the regulation of MMR in single-celled organisms such as bacteria, yeast and mammalian cells, as well as in more complex multicellular organisms such as rodents and plants.
In that scenario, colonies of single-celled organisms called choanoflagellates gave way to multicellular predecessors of sponges; millions of years later, an offshoot of these organisms formed nerve cells.
Magnetotactic bacteria are simple, single-celled organisms that are found in almost all bodies of water.
Scientists reported in the journal PNAS that Megavirus probably infects amoebas, single-celled organisms that are floating free in the sea.
Bacteria are single-celled organisms that can cause many kinds of illnesses.
He specialises in researching the diversity of single-celled organisms, or ciliates, and has received funding from the Natural Environment Research Council to set up a website dedicated to them.
Most microbes found in trash are bacteria, single-celled organisms that are round, rod-shaped, or spiral.

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