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Definition of Birnavirus
1. Noun. Any of several viruses, of the family Birnaviridae, that cause infectious diseases in fish or poultry ¹
¹ Source: wiktionary.com
Medical Definition of Birnavirus
1. A virus in the family Birnaviridae that includes infectious bursal disease virus of chickens and infectious pancreatic necrosis virus of fish. Origin: bi-+ RNA + virus (05 Mar 2000)