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Meaning of oncornavirus

on•cor•na•vi•rus

Pronunciation: (ong-kôr'nu-vī"rus, -kôr"nu-vī'-), [key]
— pl. -rus•es.
  1. any of various RNA viruses that cause tumors in humans and other animals.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.