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Of or pertaining to sound; of the nature of sound; acoustic. Tyndall.

See Phonetics.

causing the production of, sound by means of the actinic, or ultraviolet, rays; as, actinophonic phenomena.

Antiphonal.

Without voice; voiceless; nonvocal.

Harsh-sounding.

Of or relating to cataphonics; catacoustic.

That branch of acoustics which treats of reflested sounds; catacoustics.

Diacoustic.

The doctrine of refracted sound; diacoustics.

Belonging to, or resembling, egophony.

to, or exhibiting, euphony; agreeable in sound; pleasing to the ear; euphonious; as, a euphonic expression; euphonical orthography.

A kind of uptight piano.

Now used for plain harmony, note against note, as opposed to polyphonic harmony, in which the several parts move independently, each with its own melody.

Of or pert. to a microphone; serving to intensify weak sounds.

The science which treats of the means of increasing the intensity of low or weak sounds, or of the microphone.

Single-voiced; having but one part; as, a monophonic composition; -- opposed to Ant: polyphonic.

derivatives of phosphorous acid containing a hydrocarbon radical, and analogous to the sulphonic acid.

Of or pertaining to photophone.

Characterized by polyphony; as, Assyrian polyphonic characters.