noun
diaphragm; vicinity of the diaphragm
Rare anatomical term for the diaphragm or the area around it. In modern Japanese, 横隔膜 (おうかくまく) is the standard word for 'diaphragm'.
古典医学書では「膈」が横隔膜を指すことがある。
In classical medical texts, 膈 can refer to the diaphragm.