Search the dictionary A Chinese word or character, or English Search 5 entries. bídòu 鼻窦 paranasal sinus bídòu 鼻竇 paranasal sinus bīdou 逼兜 a slap on the face bídòuyán 鼻窦炎 sinusitis bídòuyán 鼻竇炎 sinusitis