orthomyxovirus Hear it!

orthomyxovirus Definition

ortho·myxo·virus (ôr′t̸hō mik′sə vī′rəs)

noun

any of a family (Orthomyxoviridae) of RNA viruses affecting certain vertebrates, primarily causing upper respiratory infections; especially, any of a genus (Influenzavirus) causing influenza in human beings