from The American Heritage® Dictionary of the English Language, 5th Edition.

  • noun A segment of DNA in certain cells, especially bacterial cells, that can exist either autonomously in the cytoplasm or as part of a chromosome.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • noun cytology A segment of DNA that can exist and replicate either autonomously in the cytoplasm or as part of a chromosome, mainly found in bacteria.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • noun DNA that is not incorporated into the genome but is replicated together with the genome (especially in bacterial cells)


Sorry, no etymologies found.


  • From this work there emerged a whole series of new concepts, such as the oriented process of genetic transfer from the male to the female, the circularity of the bacterial chromosome or the episome concept.

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  • Like HSV-1, VZV DNA exists as an endless (either circular or concatameric) episome.

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  • When riskily was worse addison real estate to go slapdash, the episome nazimova wastrel dumpy zostera.

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  • Lastly, we demonstrated expression of EBNA1, a protein essential for maintaining viral episome.

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  • Of the various known antigens of EBV expression, EBNA-1is essential for maintenance of viral episome and is expressed in all known forms of viral latency.

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  • All of the following statements concerning an episome (F factor) are true EXCEPT

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