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n. pl. ar·chae·a (-kē-ə)
Any of various prokaryotic microorganisms of the domain Archaea, being genetically distinct from bacteria and often living in habitats with extreme environmental conditions such as high temperature or salinity. Also called archaebacterium.

[New Latin Archaeon (back-formed singular of Archaea, domain name), from Greek arkhaion, neuter singular of arkhaios, ancient (in reference to the very ancient separation of the archaea and the eubacteria in evolutionary history); see archaic.]


an order of prokaryotic microorganisms
References in periodicals archive ?
Later on, it was found that these repeats elements are present in more than 40% of sequenced bacteria and 90% of archea (18).
Archea Ancient Art brings a vibrantly painted canopic chest used in ancient Egypt to contain internal organs during mummification (Fig.
PHAs are synthesized by a large number of archea, bacteria, fungi and cyanobacteria as intracellular inclusion bodies in response to a nutrient imbalance, i.
The failure or low production of methane from biogas plants is reported due to intolerant capacity of mesophilic bacteria and archea under psychrophilic environments (Kashyap et al.
There are sections on seafloor sediments, oceanic crust, terrestrial hard rock environments, Archea in deep marine subsurfaces, and petroleum.
These complex communities contain members from all three domains of life, namely, bacteria, archea, and eukarya.
Blanc PD, Eisner MD, Katz PP, Yen IH, Archea C, Earnest G, et al.