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.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
(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
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
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.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
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.
The American Heritage® Student Science Dictionary, Second Edition. Copyright © 2014 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
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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
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