SONO'ROUS, adjective [Latin sonorus, from sonus, sound.] 1. Giving sound when struck. Metals are sonorous bodies. 2. Loud sounding; giving a clear or loud sound; as a sonorous voice. 3. Yielding sound; as, the vowels are sonorous 4. High sounding; magnificent of sound. The Italian opera, amidst all the meanness and familiarity of the thoughts, has something beautiful and sonorous in the expression.
Source: Webster's 1828 American Dictionary ↗ · public-domain · returned verbatim, no AI