trom‧bone /trɒmˈbəʊn $ trɑːmˈboʊn/
noun [countable][
Date: 1700-1800;
Language: Italian;
Origin: tromba 'trumpet']
a large metal musical instrument that you play by blowing into it and sliding a long tube in and out to change the notes
—trombonist noun [countable] [TahlilGaran] Dictionary of Contemporary English ▲