n. [ Pref. cata + phonic: cf. F. cataphonique. ] (Physics) That branch of acoustics which treats of reflected sounds; catacoustics. [ 1913 Webster ]
n. The doctrine of refracted sound; diacoustics. [ 1913 Webster ]
n. [ See Microphone. ] The science which treats of the means of increasing the intensity of low or weak sounds, or of the microphone. [ 1913 Webster ]
n.