a form of bass tuba, similar to the helicon, used in brass bands.
Origin of sousaphone
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
music a large tuba that encircles the player's body and has a bell facing forwards
Word Origin for sousaphone
C20: named after John Philip Sousa
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
1903, named for U.S. bandleader and composer John Philip Sousa (1854-1932).
The first sousaphone was made by C.G. Conn in 1899 expressly for Sousa's band and its bell opened directly upward. The present bell-front type was first made in 1908. ["International Cyclopedia of Music," 1939]
Online Etymology Dictionary, © 2010 Douglas Harper
A kind of tuba that wraps around the player's body so that it can be carried easily while marching.
The sousaphone is named after the bandmaster John Philip Sousa, who suggested building the instrument in this shape.
The New Dictionary of Cultural Literacy, Third Edition Copyright © 2005 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.