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tubular bell

noun
  1. Often tubular bells. one of a set of tuned metal tubes of different lengths used as a musical instrument, suspended vertically from a frame and struck with a mallet to produce sounds or melodies.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
British Dictionary definitions for tubular bells

tubular bells

pl n
  1. music an orchestral percussion instrument of 18 chromatically tuned metal tubes suspended vertically and struck near the top
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