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myx·o·ma·to·sis mik-.sō-mə-'tō-səs n, pl -to·ses -.sēz a condition characterized by the presence of myxomas in the body specif a severe virus disease of rabbits that is caused by a poxvirus (species Myxoma virus of the genus Leporipoxvirus), is transmitted by mosquitoes, biting flies, and direct contact, and has been used in the biological control of wild rabbit populations
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myx·o·ma·to·sis (mik″so-mə-toґsis) a condition marked by the development of multiple myxomas. myxomatous degeneration.Medical dictionary. 2011.