(historical) An instrument for studying the human voice, having a lamp, a mirror, and a tube that is introduced into a person's mouth. The inner workings of the mouth can then be viewed while speaking etc..
현재 검증된 한국어 뜻은 준비 중이며 영어 정의는 “(historical) An instrument for studying the human voice, having a lamp, a mirror, and a tube that is introduced into a person's mouth. The inner workings of the mouth can then be viewed while speaking etc.”입니다.