Pathology . a painful circumscribed inflammation of the subcutaneous tissue, resulting in suppuration and sloughing, and having a tendency to spread somewhat like a boil, but more serious in its effects.

a gemstone, esp. a garnet, cut with a convex back and a cabochon surface.

Also called London brown. a dark grayish, red-brown color.

Obsolete . any rounded red gem.

having the color carbuncle.

noun

abscess , boil , pimple , sore , stones