text: carbuncle \n\nAs a medical term\nA ]] larger than a boil, usually with one or more openings draining pus onto the skin. It is usually caused by bacterial infection.\n\n\nIn gemology\nA carbuncle is a term for a convex, unfaceted, deep-red garnet.\n\n\nIn the Bible\nThe word carbuncle occurs in three places in most translations of the Bible. Each use originates from the same Hebrew word בָּרְקַת בָּרְקַת or bâreqath bâreqath (baw-reh'-keth, baw-rek-ath'). In this sense, a carbuncle is usually taken to mean a gem, particularly a deep-red garnet, unfaceted and convex; however, the Hebrew definition is less definite and the precise color of the gems is not known.