单词	Newcastle disease
释义	Newcastle disease noun New·​cas·​tle disease ˈnü-ˌka-səl-  ˈnyü-; n(y)ü-ˈka- : a contagious often fatal virus disease of birds and especially the domestic chicken that is caused by a paramyxovirus (species Newcastle disease virus of the genus Avulavirus) and that is marked by respiratory and nervous symptoms Word History Etymology Newcastle upon Tyne, England First Known Use 1927, in the meaning defined above Medical Definition Newcastle disease noun New·​cas·​tle disease ˈn(y)ü-ˌkas-əl-, n(y)ü-ˈ  : a contagious mild to fatal virus disease of birds and especially the domestic chicken that is caused by a paramyxovirus of the genus Rubulavirus (species Newcastle disease virus), that is marked by highly variable respiratory, digestive, and nervous clinical signs (as sneezing, coughing, diarrhea, incoordination, tremors, and twitching of the head) and that is especially destructive to young birds although all ages may be attacked called also pseudoplague
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