plural of percussion hammer

A small hammer for percussion in medical diagnosis.

plural of percussion lock

A fuse in a projectile set in action by concussion when the projectile strikes the object.

plural of percussion fuse

plural of percussion bullet

(firearms) A bullet designed to explode on striking its target.

Pain felt in the abdomen during menstruation.

(psychology) A sensation (sight, sound, etc) that is perceived but not registered because it is too insignificant, such as the sound of each raindrop hitting a roof.

plural of future perfect