Amoeba

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Related to amoebas: ameba, amoebiasis, Diatoms

Amoeba

 [ah-me´bah]
a genus of ameboid protozoa, most of which are free-living. Those parasitic in humans and once included in this genus have been assigned to other genera.

Amoeba

(ă-mē'bă),
A genus of naked, lobose, pseudopod-forming protozoa of the class Sarcodina (or Rhizopoda), which are abundant soil-dwellers, especially in rich organic debris, and are also commonly found as parasites. The typical amebic parasites of humans are now placed in the genera Entamoeba, Endolimax, and Iodamoeba.
See also: Naegleria.
[Mod. L. fr. G. amoibē change]

Amoeba

/Amoe·ba/ (ah-me´bah) a genus of amebae.

amoeba

also

ameba

(ə-mē′bə)
n. pl. amoe·bas or amoe·bae (-bē)
Any of various one-celled free-living or parasitic protozoans having no definite form and moving by means of pseudopods.

a·moe′bic (-bĭk) adj.

amoeba

See ameba.

Amoeba

(1) A genus of amoebas of the order Amoebida.
(2) An imprecise name for several types of free-living unicellular phagocytic organisms; the pathogenic amoebas have been reclassified as Entamoeba spp, Endolimax spp, and others
Giant forms (eg. Amoeba proteus may be up to 2 mm long and crawl over surfaces by protruding pseudopods). Amoebae exhibit great plasticity of form and conspicuous cytoplasmic streaming.

Amoeba

Parasitology A genus of amebas of the order Amoebida

amoeba

Ameba An imprecise name for several types of free living unicellular phagocytic organisms; the pathogenic amebas have been reclassified as Entamoeba spp, Endolimax spp, and others

A·moe·ba

(ă-mē'bă)
A genus of naked, lobose, pseudopod-forming protozoa of the class Sarcodina (or Rhizopoda), which are abundant soil-dwellers, especially in rich organic debris, and are also commonly found as parasites. The typical amebic parasites in humans are placed in the genera Entamoeba,Endolimax, and Iodamoeba.
[Mod. L. fr. G. amoibē change]

amoeba

A single-celled microscopic organism of indefinite shape commonly found in water, damp soil and as parasites of other animals. Some amoebae, such as Entamoeba histolytica and Acanthamoeba castellani cause disease in man, respectively AMOEBIC DYSENTERY and acanthamoebic keratitis.
Amoebaclick for a larger image
Fig. 31 Amoeba . General structure.

Amoeba

a genus of unicellular PROTOZOANS in the class Rhizopoda. Amoebae are characterized by their changing shape brought about by the projection of PSEUDOPODIA which have a locomotory function. Amoeba is often wrongly quoted as an example of a primitive organism, low on the evolutionary scale. However, as in many PROTISTA, functions that are carried out by organ systems in so-called ‘higher’ forms are here carried out within a single cell, therefore they cannot be considered ‘primitive’; they are highly evolved over millions of years, albeit on a different scale from higher organisms.

Amoeba

A type of protozoa (one-celled animal) that can move or change its shape by extending projections of its cytoplasm.
Mentioned in: Stool O & P Test

A·moe·ba

(ă-mē'bă)
A genus of naked, lobose, pseudopod-forming protozoa of the class Sarcodina (or Rhizopoda), which are abundant soil-dwellers, especially in rich organic debris, and are also commonly found as parasites. The typical amebic parasites in humans are placed in the genera Entamoeba, Endolimax, and Iodamoeba.
[Mod. L. fr. G. amoibē change]

amoeba (əmē´bə),

n a Rhizopod protozoa that uses extensions of its cytoplasm, called pseudopodia, to move. Some varieties of amoebae are implicated in human infection. Also spelled
ameba(s).

Amoeba

a genus of the subphylum Sarcodina. It is a single-celled mass of protoplasm which changes shape by extending cytoplasmic processes called pseudopodia by which it moves about and absorbs nutrients. The majority of amebae are free-living in soil and water. See also amebic.

Patient discussion about Amoeba

Q. is an Amoeba dangerous?? and how can i get rid of it? my son is in Peru, he called and told me he got an Amoeba..i have no idea if it's dangerous or not, and how to get rid of it. and what kinds of food he needs to avoid.I'll appreciate help!

A. oooo...an Amoeba is a nasty one...but not so dangerous! it's a one celled parasite which gets into your body if you eat in restaurants that the cook doesn't wash hands after going to the bathroom..it multiplies in your intestine and makes you diarrhea like hell. but if you'll treat it right it will go away as nothing happened. if you don't it can give you liver cyst. and that's not good. he should see a Dr.

More discussions about Amoeba
References in periodicals archive ?
The Tartan Amoebas mix traditional celtic music with pop, funk and jazz.
But this amoeba of a team may be beginning to take form.
A number of amoebas can directly trigger disease, from a blinding corneal infection to lethal brain inflammation.
There's no evidence so far that the social amoebas tend a bacterial crop once it starts growing, notes evolutionary geneticist Duur Aanen of Wageningen University in the Netherlands.
When the going gets tough, social amoebas get together.
Indeed, only the movie's snappy title sequence, in which eyeballs and amoebas flash about to cool music, lives up to expectations.
Amoebas move by extending protuberances known as pseudopods.
Cooling towers on buildings harbor amoebas infected with both known and unknown types of bacteria.
Sperm of the nematode Caenorhabditis elegans ooze around like amoebas instead of swimming like, say, human sperm.
Some single-celled amoebas that become stalled while dividing into two daughter cells summon help from fellow amoebas, according to a report in March 22 NATURE.
For amoebas, the answer lies in a vital function of the telltale chemical, proposes Jurgen Kusch of the University of Kaiserslautern in Germany.