timpanums

/ˈtɪmpənəmz/
noun
  1. Large drums that are part of an orchestra, played by hitting them with mallets; also called kettledrums.
    • The orchestra's timpanums added a deep, resonant beat to the march.
    • She practiced striking the timpanums with different mallets to change the sound.
    • The timpanums rumbled dramatically during the symphony's climax.