har ‧ mon ‧ i ‧ ca /hɑːˈmɒnɪkə $ hɑːrˈmɑː-/ BrE AmE noun [countable]
[ Date: 1700-1800 ; Language: Italian ; Origin: armonica , from Latin harmonia ; ⇨ ↑ harmony ]
a small musical instrument that you play by blowing or sucking and moving it from side to side near your mouth SYN mouth organ