The word "staphylion" is a medical term for a grape-like cluster of veins. Its correct spelling is [stæˈfaɪliən], with emphasis on the second syllable. The "ph" in "staphylion" is pronounced as an "f" sound because it is derived from the Greek word "staphylin" meaning grape. The "y" represents a Greek letter "upsilon" which sounds like "uh" in "but". The ending "-ion" is pronounced as "ee-uhn". So, "staphylion" is spelled as [stæˈfaɪliən] and pronounced as stæ-FY-lee-uhn.
A craniometric point, the midpoint of the posterior edge of the hard palate.
A practical medical dictionary. By Stedman, Thomas Lathrop. Published 1920.