1. plural of trombone; brass musical instruments with a sliding tube used to change pitch

Examples

• The trombones played a beautiful melody in the orchestra.
• Three trombones sat in the back row of the band.
• The jazz ensemble featured two trombones and a trumpet.
• She practiced her scales on one of the school’s trombones.
• The trombones provided the deep, rich bass notes.
• All the trombones needed to be tuned before the concert.