マウスピース

(1)an acoustic device; the part of a telephone into which a person speaks

(2)音響装置

(3)電話で人がそれに向かって話す部分

(4)(especially boxing) equipment that protects an athlete's mouth

(5)運動選手の口を守る装具

(6)the aperture of a wind instrument into which the player blows directly

(7)演奏者が直接吹く管楽器の開口部

(8)a part that goes over or into the mouth of a person; "the mouthpiece of a respirator"

(9)人の口の上または口の中に入れる部品

(1)