Definition of amoeba in English:

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Pronunciation: /əˈmēbə/
(also ameba)

noun (plural amoebas or amoebae /-bē/)

A single-celled animal that catches food and moves about by extending fingerlike projections of protoplasm. Amoebas are either free-living in damp environments or parasitic.
  • Many families and genera in the phylum Rhizopoda, kingdom Protista, including the aquatic Amoeba proteus
Example sentences
  • Pheromones are widespread in the animal world, from the single-celled amoeba to human beings.
  • Contact with protozoa, the tremendously varied group of more sophisticated single-celled microbes that includes amoeba and paramecium, has also been greatly reduced in the developed world by water and food treatment measures.
  • The virus lives in single-celled organisms called amoebae and may be able to infect humans.



Pronunciation: /əˈmēbik/
Example sentences
  • Fever is the presenting symptom in 10 to 15 percent of patients, and therefore amebic abscess should be considered in patients with a fever of unknown origin.
  • Elsewhere, amoebic abscesses are more common, and, worldwide, amoebae are the commonest cause.
  • If you develop an amoebic liver abscess and have not responded well to antibiotic treatment after seven days, or there is a high risk that the abscess may rupture, your doctor may suggest a small operation to drain the abscess.


Pronunciation: /əˈmēˌboid/
Example sentences
  • Capable of ameboid movement, these cells wander throughout the connective tissue and congregate in regions requiring their specialized function.
  • Then, a bridge-like conjugation tube is formed to connect neighboring cells, and the amoeboid cells from one filament move over into the neighboring filament.
  • In these he developed a highly distinctive repertoire of weird subjects - strange amoeboid creatures, insects, and plants with human heads - influenced by the writings of Edgar Allan Poe.


Mid 19th century: modern Latin, from Greek amoibē 'change, alternation'.

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