ˈalˌtȯrn, ˈaltˌhȯ-, -ȯ(ə)n noun
( -s )
Etymology: German althorn, from alt alto (from Italian alto ) + horn, from Old High German — more at alto , horn
: the alto member of the saxhorn family used most frequently in bands where it often replaces the French horn — called also alto, alto saxhorn ; see ballad horn