DictionarytapperLight striking
noun

tapper

TAP-er/tˈæpɝ/

A person or device that strikes lightly or repeatedly.

The triangle's tapper strikes the suspended metal lightly with a slender rod.

A young adult man lightly taps a suspended metal triangle with a slender striker, making the person performing the light striking action the focus.
Etymology

Tap is ultimately imitative of a light rapping sound. Adding -er names the person or device producing that sound by striking lightly.

More examples

  • She is a constant foot tapper when music plays.
  • The small tapper strikes the bell at regular intervals.
  • A felt cover keeps the tapper from striking too loudly.

Forms

tapper · tappers

tap verb — To strike lightly, often with a sound.

Similar words

knocker
Usually knocks on a door, often to attract attention.
striker
Delivers a blow that need not be light or repeated.