Dictionary![]() ![]() pol•y•o'ma vi"rusPronunciation: (pol"ē-ō'mu), [key] a small DNA-containing virus, of the papovavirus group, that can produce a variety of tumors in mice, hamsters, rabbits, and rats. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
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