prokaryote

from WordNet (r) 3.0 (2006)
prokaryote
    n 1: a unicellular organism having cells lacking membrane-bound
         nuclei; bacteria are the prime example but also included
         are blue-green algae and actinomycetes and mycoplasma [syn:
         {prokaryote}, {procaryote}] [ant: {eucaryote}, {eukaryote}]
    

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