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ALL meanings of archaebacteria

ar·chae·bac·te·ri·a
A a
  • noun plural archaebacteria (formerly) a group of microorganisms now regarded as members of the Archaea 3
  • noun plural archaebacteria any of a large group of primitive bacteria having unusual cell walls, membrane lipids, ribosomes, and RNA sequences, and having the ability to produce methane and to live in anaerobic, extremely hot, salty, or acidic conditions; archaea 3
  • noun archaebacteria Microorganisms that are similar to bacteria in size and simplicity of structure but radically different in molecular organization. They are now believed to constitute an ancient intermediate group between the bacteria and eukaryotes. 1
  • noun archaebacteria plural of archaebacterium. 0
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