柯林斯詞典sinusitis /?sa?n??sa?t?s/ 1. N-UNCOUNT If you have sinusitis, the layer of flesh inside your sinuses is swollen and painful, which can cause headaches and a blocked nose. 鼻竇炎 返回 sinusitis劍橋詞典inflammation of the lining of the sinuses (= hollow spaces in the bones of the face ) especially around the nose 鼻竇炎 chronic sinusitis 慢性鼻竇炎 返回 sinusitis