IPA: /ˈkɑːbʌŋkəl/
KK: /ˈkɑrˌbʌŋkəl/
A painful skin infection that forms a lump and can have multiple openings for pus to come out, or a type of deep-red gemstone.
The doctor diagnosed him with a carbuncle on his back that needed treatment.
Carbuncle is derived from the Latin "carbunculus" (meaning little coal or glowing ember), which is a diminutive form of "carbo" (meaning coal). The word originally referred to a painful, inflamed swelling on the skin that resembles a coal or ember in appearance.
Think of 'coal' ('carbo') and how a carbuncle looks like a small, inflamed spot that glows or burns, similar to an ember.