a musical instrument, as the drum, cymbal, triangle, xylophone, or piano, that is struck to produce a sound, as distinguished from string or wind instruments.
Origin of percussion instrument
First recorded in 1870–75
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
any of various musical instruments that produce a sound when their resonating surfaces are struck directly, as with a stick or mallet, or by leverage action. They may be of definite pitch (as a kettledrum or xylophone), indefinite pitch (as a gong or rattle), or a mixture of both (as various drums)
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012