cochlear duct
Anatomical term for the cochlear duct, a fluid-filled cavity within the cochlea of the inner ear.
The cochlear duct is a part of the membranous labyrinth inside the cochlea of the inner ear.
Compound of 蝸牛 (kagyū, 'cochlea') and 管 (kan, 'duct, tube'). The term is a direct anatomical calque.