paramyxovirus

(păr'ə-mĭk'sə-vī'rəs)
n., pl., -rus·es.
Any of a group of viruses that contain RNA and are similar to but larger and more variable in size than the related myxovirus. The paramyxoviruses include the Sendai virus, the parainfluenza viruses, and the viruses that cause measles and mumps.

A subgroup of myxoviruses that includes the viruses of mumps, measles, parainfluenza, respiratory syncytial (RS) disease, and Newcastle disease. Like influenza viruses, the paramyxoviruses are ribonucleic acid (RNA)-containing viruses and possess an ether-sensitive lipoprotein envelope. See also Animal virus; Measles; Mumps; Newcastle disease; Parainfluenza virus.

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(păr'ə-mĭk'sə-vī'rəs)
n.

A member of the genus Paramyxovirus.

A member of the family Paramyxoviridae.

• avian p's — avian paramyxovirus-1 causes newcastle disease; avian paramyxovirus-2 causes Yucaipa disease, avian paramyxovirus-3 causes depression, coughing and a drop in egg production in turkeys and occasionally chickens and psittacine birds; avian paramyxovirus-6 causes mild respiratory infection in turkeys.
• p. encephalomyelitis — a disease of pigs in Mexico, believed to be caused by a paramyxovirus. In addition to encephalomyelitis, there is reproductive failure and corneal opacity. Called also porcine blue eye disease. Mexican blue eye. Paramyxovirus-like agents have also been associated with encephalomyelitis in domestic and large exotic Felidae.

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The noun has one meaning:

Meaning #1: a group of viruses including those causing mumps and measles

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