microorganism

(redirected from Single-celled Organisms)
Also found in: Dictionary, Thesaurus, Encyclopedia.

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

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.

mi·cro·or·gan·ism

(mī'krō-ōr'găn-izm)
A microscopic organism (plant or animal).
References in periodicals archive ?
Ranging from single-celled organisms to large seaweeds, they are the world's most abundant form of plant life and, via photosynthesis, are extremely efficient at using sunlight and carbon dioxide from the air to make organic material such as sugars, proteins and, under the right conditions, oils.
Next month's article on microbial genomics will look into the unique potential applications related to sequencing the genomes of single-celled organisms. Readers concerned with ethical and social issues raised by DNA sequencing may be interested in the previous related articles:
Bacteria are single-celled organisms. They are very small, even smaller than human body cells.
Bacteria are single-celled organisms that are surrounded by membranes made of lipids.
TEHRAN (FNA)- All multicellular creatures are descended from single-celled organisms. The leap from unicellularity to multicellularity is possible only if the originally independent cells collaborate.
The universality of the genetic code common to all living things is consistent with the theory of evolution that all living things descended from single-celled organisms. Thus all living things share a common genetic heritage from very distant ancestors.
The surprising abundance of bacteria and single-celled organisms called archaea, roughly 130,000 cells per thimbleful in the lightless lake, ends a decades-long hunt for evidence of life wedged under the Antarctic ice.
More than 500 million years ago, single-celled organisms on the Earth's surface began forming multicellular clusters that ultimately became plants and animals.
I teach a non-majors microbiology class and used "Proteus" to illustrate the multitude of forms of single-celled organisms.
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.

Full browser ?