8 letters · 14 points in Scrabble
noun butterfly-shaped bone at the base of the skull
originFrom New Latin sphenoides, from Ancient Greek σφηνοειδής (sphēnoeidḗs, “wedge-shaped”), from σφήν (sphḗn, “wedge”) + -ειδής (-eidḗs, “-form, -like”).
Etymology from Wiktionary, CC BY-SA 3.0