one of the eight bones of the cranium; a small bone filled with air spaces that forms part of the eye sockets and the nasal cavity
ethmoid的用法和样例：
例句
用作名词 (n.)
His ethmoid bone was broken in the accident. 他在这次车祸中筛骨骨折。
Forobtaining the bets result,the height of maxillary-ethmoid and the height from the up-edgeof maxillary-ethmoid plate to the roof of posterior ethmoid were measured. 鼻前棘至后筛顶后缘的距离及角度，观察中鼻甲的走行及附着，筛骨水平板的形态及后筛窦的分度及变异，为临床手术提供了一定的解剖学依据。
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