膈かくかくMeanings1noundiaphragm; vicinity of the diaphragmrare termRare 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'.古こ典てん医い学がく書しょでは「膈かく」が横おう隔かく膜まくを指さすことがある。In classical medical texts, 膈 can refer to the diaphragm.