a distinctive section or ornament at the apex of a roof, pinnacle, canopy, or similar structure in a building (建筑物的)叶尖饰,尖顶饰 ■an ornament at the top, end, or corner of an object (物体顶部、底端、边角的)装饰 ornate curtain poles with decorative finials. 带有装饰帽的华丽的窗帘杆。
语源
late Middle English: from Old French fin or Latin finis 'end'