|anthrax (ān'thrāks') Pronunciation Key
An infectious, usually fatal disease of mammals, especially cattle and sheep, caused by the bacterium Bacillus anthracis. The disease is transmitted to humans through cutaneous contact, ingestion, or inhalation. Cutaneous anthrax is marked by the formation of a necrotic skin ulcer, high fever, and toxemia. Inhalation anthrax leads to severe pneumonia that is usually fatal.