Webster’s Revised Unabridged Dictionary · 1913
Stentorophonic
Sten′to·ro·phon′ic, a. [Gr. Στέντωρ Stentor + φωνή a sound, voice. See Stentor.] Speaking or sounding very loud; stentorian. [Obs.]
Of this stentorophonic horn of Alexander there is a preserved in the Vatican. Derham.