| 单词 | archaea |
| 释义 | archaea[ ahr-kee-uh ] / ˈɑr ki ə / plural noun, singular ar·chae·on [ahr-kee-on]. /ˈɑr kiˌɒn/. Microbiology.a group of microorganisms, including the methanogens and certain halophiles and thermoacidophiles, that have RNA sequences, coenzymes, and a cell wall composition that are different from all other organisms: considered to be an ancient form of life that evolved separately from the bacteria and blue-green algae and classified by many biologists as constituting the domain Archaea. Origin of archaeaFirst recorded in 1985–90; from New Latin, from Greek archaîa, neuter plural of archaîos “ancient”; see origin at archaeo- Words nearby archaeaArcesilaus, Arcesius, arcform, arc furnace, arch, archaea, archaean, archaebacteria, archaebacterium, archaeo-, archaeoastronomy Definition for archaea (2 of 2)Archaea [ ahr-kee-uh ] / ˈɑr ki ə / noun (used with a singular or plural verb)Microbiology.(in the three-domain system of classification) the taxonomic domain comprising the archaea. See also domain (def. 6). Origin of ArchaeaFrom New Latin; see origin at archaea Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020 |
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