Ŏph'i-cleīde, n.

(ŏf'ĭ-klīd), n. [Fr. ophicleide, from Gr. ὄφις, a serpent, and κλείς, κλείδος, a key.] (Mus.) A large brass wind instrument of the trumpet kind, used in the orchestra, and in military bands, having a loud tone, deep pitch, and a compass of three octaves. Moore.