蝸か牛ぎゅう殻かくMeanings1nouncochleaanatomyAnatomical term for the spiral-shaped cavity in the inner ear. Cross-referenced with 蝸牛 (sense 2), which also means 'cochlea'.See also: 蝸牛蝸か牛ぎゅう殻かくは内ない耳じにある聴ちょう覚かく器き官かんの一いち部ぶです。The cochlea is part of the auditory organ in the inner ear.