percussion

From Wiktionary

Pronunciation[change]

Noun[change]

Singular
percussion

Plural
percussions

  1. (countable) Percussion is the collision of two items in order to produce a sound.
  2. (medicine) Percussion is the tapping of the patient's body so as to aid in a medical diagnosis.
  3. (music) Percussion is the section of an orchestra that contains percussion instruments.