The word "pygomelus" is not commonly used in everyday language, but it refers to a medical condition where the tailbone is prominent. The word's pronunciation is /paɪˈgɒmɪləs/, with stress placed on the second syllable. The prefix "pygo-" means "related to the buttocks," while "melus" refers to limb malformation. Thus, the word means "an abnormality related to the backside and limbs." Correct spelling of uncommon medical terms is crucial in the healthcare industry to avoid any misunderstandings that could lead to misdiagnosis or worse.
A double monster in which the parasite is represented by a fleshy mass, or rarely a more fully developed limb, attached to the sacral or coccygeal region of the autosite.
A practical medical dictionary. By Stedman, Thomas Lathrop. Published 1920.