prokaryote(redirected from Procaryotes)
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Related to Procaryotes: Prokaryotes
pro·kar·y·otealso pro·car·y·ote (prō-kăr′ē-ōt′)
Any of various microorganisms of the domains Archaea and Bacteria, characterized by the absence of a distinct membrane-bound nucleus and membrane-bound organelles and by the simultaneous occurrence of DNA transcription and protein synthesis at the same site, in contrast to eukaryotes. Also called moneran.
[French procaryote : Greek pro-, before; see pro-2 + Greek karuōtos, having nuts (from karuon, nut; see karyo-).]
pro·kar′y·ot′ic (-ŏt′ĭk) adj.
(Biology) any organism having cells in each of which the genetic material is in a single DNA chain, not enclosed in a nucleus. Bacteria and archaeans are prokaryotes. Compare eukaryote
[from pro-2 + karyo- + -ote as in zygote]
prokaryotic, procaryotic adj
or pro•car•y•ote(proʊˈkær iˌoʊt, -i ət)
any one-celled organism that lacks a distinct membrane-bound nucleus and has its genetic material in the form of a continuous strand forming loops or coils: characteristic of monerans. Compare eukaryote.
pro•kar`y•ot′ic (-ˈɒt ɪk) adj.
Any of a wide variety of one-celled organisms that lack a distinct cell nucleus or other structures bound by a membrane and that have DNA that is not organized into chromosomes. Prokaryotes reproduce asexually, are the most primitive and ancient known forms of life, and include the bacteria and blue-green algae. Prokaryotes are grouped as a separate kingdom in taxonomy. Also called moneran. Compare eukaryote. See Table at taxonomy.
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|Noun||1.||prokaryote - 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|
organism, being - a living thing that has (or can develop) the ability to act or function independently