• Webster's Revised Unabridged Dictionary
    • n Althorn (Mus) An instrument of the saxhorn family, used exclusively in military music, often replacing the French horn.
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Century Dictionary and Cyclopedia
    • n althorn A musical instrument of the sax-horn class, often used in place of or with the French horn in military bands.
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Webster's Revised Unabridged Dictionary
Alt, + horn,


In literature:

ALTHORN, one of the instruments of the sax-horn family, the tenor sax-horn.
"The New Gresham Encyclopedia. Vol. 1 Part 1" by Various