Main Entry: blue·tongue

Pronunciation: \ˈblü-ˌtəŋ\

Function: noun

Date: 1863

: a virus disease chiefly of sheep that is marked by hyperemia, cyanosis, and by swelling and sloughing of the mucous membranes especially about the mouth and tongue and is caused by a reovirus (species Bluetongue virus of the genus Orbivirus)