carbuncle


carbuncle
carbuncle [kär′buŋ΄kəl]
n.
[ME < OFr < L carbunculus, a little coal, gem < carbo: see CARBON]
1.
a) Archaic any of certain deep-red gems
b) a smooth, convex, deep-red garnet
2. a painful bacterial infection (esp. Staphylococcus aureus) deep beneath the skin, having a network of pus-filled boils
carbuncular [kär buŋ′kyo͞o lər]
adj.

English World dictionary. . 2014.