noun
body of a biwa
Specifically refers to the wooden soundbox of a biwa (Japanese lute). A technical term in traditional music.
See also: 琵琶
琵琶の槽は桑の木で作られることが多い。
The body of a biwa is often made of mulberry wood.
琵琶 is the instrument itself; 槽 is specifically its body.
The kanji 槽 originally means a trough or tank; its use for the body of a biwa is a specialized extension.