resonant

adjective

1. resounding or echoing, as sounds: the resonant thundering of cannons being fired.
2. deep and full of resonance: a resonant voice.
3. pertaining to resonance.
4. producing resonance; causing amplification or sustention of sound.
5. pertaining to a system in a state of resonance, especially with respect to sound.

noun

6. Phonetics. a vowel or a voiced consonant or semivowel that is neither a stop nor an affricate, as, in English, (m, ng, n, l, r, y, w).

adjective

1. (of sound) resounding or re-echoing
2. producing or enhancing resonance, as by sympathetic vibration
3. characterized by resonance

adj.

1590s, from Latin resonantem (nominative resonans), present participle of resonare (see resonance).