鼻び穴けつMeanings1nounnostrilrare termRare term for nostril; the standard word is 鼻孔 (びこう).See also: 鼻孔「鼻び穴けつ」は「びけつ」と読よみ、鼻び孔こうと同おなじ意い味みだが、ほとんど使つかわれない。鼻穴 is read びけつ and means the same as 鼻孔, but it is rarely used.