The Collaborative International Dictionary of English v.0.48:
Stentorian \Sten*to"ri*an\, a. [L. stentoreus; cf. Gr. ?.] Of or pertaining to a stentor; extremely loud; powerful; as, a stentorian voice; stentorian lungs. [1913 Webster]WordNet (r) 3.0 (2006):
stentorian adj 1: used of the voice [syn: booming, stentorian]