Jisho

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Noun
1. paranasal sinus; paranasal cavity; sinus paranasalesふくびくう is used by medical professionals
Wikipedia definition
2. Paranasal sinusesParanasal sinuses are a group of four paired air-filled spaces that surround the nasal cavity, above the eyes, between the eyes, and behind the ethmoids. The sinuses are named for the facial bones in which they are located.
Read “Paranasal sinuses” on English Wikipedia
Read “副鼻腔” on Japanese Wikipedia
Read “Paranasal sinuses” on DBpedia
Other forms
副鼻腔 【ふくびくう】

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