resonant

Resounding, echoing.

Adjusted as to dimensions so that currents or electric surgings are produced by the passage of electric waves of a given frequency.

A sonorant vowel or consonant.

Any of the Proto-Indo-European consonants *l, *m, *n, *r, *w (*u̯), and *y (*i̯) or its descendants in an Indo-European language, capable of syllabic pronunciation in the zero grade and represented by the cover symbol ⟨R⟩ in structural notation.