Lewis Short
anthrax (noun M) = ἄνθραξ: (coal).
* Natural cinnabar (the color of which is like a burning coal), Vitr. 7, 8.
* In medic., a virulent ulcer (in pure Lat., carbunculus), Aem. Macr. de Herb. c. de Sabina.
Charlton T. Lewis, Charles Short, A Latin Dictionary