carbuncle

As an adjective carbuncled

is set with carbuncles (red precious stones).

As a noun carbuncle is

(archaic) a deep-red or fiery colored garnet or other dark red precious stone, especially when cut cabochon.

As nouns the difference between taxonomy and carbuncle

is that taxonomy is the science or the technique used to make a classification while carbuncle is (archaic) a deep-red or fiery colored garnet or other dark red precious stone, especially when cut cabochon.

As nouns the difference between carbuncle and glossanthrax

is that carbuncle is (archaic) a deep-red or fiery colored garnet or other dark red precious stone, especially when cut cabochon while glossanthrax is a disease of horses and cattle accompanied by carbuncles in the mouth and on the tongue.