a person who plays the drums, especially the kettledrums, in an orchestra.
Origin of tympanist
1605–15; < Latin tympanista < Greek tympanistḗs, equivalent to tympan(ízein) to beat a drum + -istēs -ist
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
a person who plays a drum, now specifically the kettledrum
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
Online Etymology Dictionary, © 2010 Douglas Harper