- Giving sound when struck; resonant; as, sonorous metals. - Loud-sounding; giving a clear or loud sound; as, a
sonorous voice. - Yielding sound; characterized by sound; vocal; sonant;
as, the vowels are sonorous. - Impressive in sound; high-sounding. - Sonant; vibrant; hence, of sounds produced in a cavity,
deep-toned; as, sonorous rhonchi.