Search Result for "euphonium": 
Wordnet 3.0

NOUN (1)

1. a bass horn (brass wind instrument) that is the tenor of the tuba family; 



The Collaborative International Dictionary of English v.0.48:

Euphonium \Eu*pho"ni*um\, n. [NL. See Euphony.] (Mus.)
   A bass instrument of the saxhorn family.
   [1913 Webster]


WordNet (r) 3.0 (2006):

euphonium
    n 1: a bass horn (brass wind instrument) that is the tenor of
         the tuba family