American Heritage Dictionary
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Century Dictionary
GNU Webster's 1913
WordNet
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Elsewhere on the web
In the United States, John Philip Sousa is both recent and popular enough to remain the recognizable parent of the sousaphone, but what of Antoine (known as Adolphe) Sax, a Belgian maker of musical instruments, and his marvelous reedbrass hybrid that enriches all types of twentieth-century music?— VERBATIM: The Language Quarterly Vol IX No 2
In photo for the page-one story titled "Chen draws freshmen," the sousaphone was incorrectly identified as David Stewart.— Technician RSS
The neon sousaphone has been brought out!— WFMU's recent playlists
The sousaphone, one of the largest instruments in a modern marching band, was designed for John Philip Sousa, the great bandmaster of the late 19th and early 20th century.— The Money Times - finance news, lifestyle, markets, investment, personal finance, banking, retirement planning
The sousaphone-splaying Uncle Wilber Fountain entertained a small but enthusiastic crowd at Acacia Park after facing a dry summer due to budget cuts.— Gazette.com :
Sousaphone has been looked up 81 times, favorited once, listed 6 times, and commented on once.

American Heritage Dictionary (1)
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