10 letters · 19 points in Scrabble
noun a solid figure bounded by plane polygons or faces
originFrom New Latin polyedron, from Ancient Greek πολύεδρος (polúedros, “having many seats”), from πολυ- (polu-, “many”) + ἕδρα (hédra, “seat”); compare French polyèdre. By surface analysis, poly- + -hedron.
Etymology from Wiktionary, CC BY-SA 3.0