n. A beautiful gem of a deep-red color, inclining to scarlet, found chiefly in the East Indies.n. In pathology, a circumscribed inflammation of the subcutaneous connective tissue, resulting in suppuration and sloughing, and having a tendency to extend itself, undermining the skin. It is somewhat similar to a boil, but more serious in its effects.n. In her.: A charge or bearing generally consisting of 8 radiating staffs or scepters, 4 of which are vertical and horizontal and 4 diagonal or saltierwise, and supposed to represent the precious stone carbuncle. Also called escarbuncle.n. The tincture red, when describing a nobleman's escutcheon according to the system of blazoning by precious stones. See blazon, n., 2.n. A whelk or “toddy-blossom” on a drunkard's face.