| a box or case containing an apparatus for producing music mechanically, as by means of a comblike steel plate with tuned teeth sounded by small pegs or pins in the surface of a revolving cylinder or disk. |
| music box n. A music-making device consisting of a housing or box enclosing a sounding mechanism, especially one in which a row of tuned steel teeth are plucked by pins set in a revolving cylinder to produce a melody. |