D defs.my
Entry 1 sense Webster, 1913

microphonous

/(mī̇*krŏf"ō̇*nŭs or mĭ*krŏf"ō̇*nŭs)/ · mi·croph·o·nous · IPA /maɪ̯ˈkrɒ.fə.nəs/
01 a. Serving to augment the intensity of weak sounds; microcoustic.
  1. 1.
    Serving to augment the intensity of weak sounds; microcoustic.