• (n.) A disease of horses and cattle accompanied by carbuncles in the mouth and on the tongue.
Glos·san'thrax noun [ Greek ... tongue + English anthrax : confer French glossanthrax .] A disease of horses and cattle accompanied by carbuncles in the mouth and on the tongue. 
glossanthrax Anthrax (cluster of boils), or carbuncle (boils), of the tongue.