名 hole，[拉] sinus，a surname，antrum ；

[例句] 筛窦炎在儿童中常并发眼眶蜂窝织炎及脓肿. Ethmoid sinusitis is frequently complicated in children by orbital cellulitis and abscess.

[例句] 节律的这种正常变化称为窦性心律失常. This normal variation in rhythm is known as sinus arrhythmia.