Definitions

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

  • noun Any of a group of viruses that contain single-stranded RNA and cause cancers in birds and mammals.

Etymologies

from The American Heritage® Dictionary of the English Language, 4th Edition

[Greek onkos, mass, tumor; see oncology + RNA + virus.]

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Examples

  • Des preuves existent dont certaines sont mme trs rcentes: en 1979, Mr. Apple et ses collaborateurs avaient dj dmontr l'inhibition de la transcriptase rverse des oncornavirus par certains flavonols d'origine vgtale.

    Chapter 7 1991

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