xiphoid process /ˈzɪfɔɪd prəʊsɛs
/ (also xiphoid cartilage) ▸ noun Anatomy the cartilaginous section at the lower end of the sternum, which is not attached to any ribs, and gradually ossifies during adult life. – ORIGIN mid 18th century (as xiphoid cartilage): xiphoid from Greek xiphoeidēs, from xiphos ‘sword’.