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
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Merriam-Webster unabridged
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