ˈbərdzˌvil-, ˈbə̄dz-, -_vəl noun
Usage: usually capitalized B
Etymology: from Birdsville, village and cattle region in Queensland, Australia
: a disease of Australian horses marked by drowsiness, emaciation, incoordination, and labored breathing, frequently ending fatally in 7 to 10 days, and being of uncertain etiology, both poisonous forage and heavy worm burdens having been suggested as possible causes