\Res"o*nant\, a. (Elec.)
Adjusted as to dimensions (as an electric circuit) so that
currents or electric surgings are produced by the passage of
electric waves of a given frequency.

\Res"o*nant\ (-nant), a. [L. resonans, p. pr. of
resonare to resound: cf. F. r['e]sonnant. See {Resound}.]
Returning, or capable of returning, sound; fitted to resound;
resounding; echoing back.
      Through every hour of the golden morning, the streets
      were resonant with female parties of young and old.
                                               --De Quincey.