Definitions

from The Century Dictionary.

  • noun A device for increasing the loudness of the sounds produced by a phonograph. See the extract.

from the GNU version of the Collaborative International Dictionary of English.

  • noun obsolescent A pneumatic reproducer for a phonograph, controlled by the recording stylus on the principle of the relay. It produces much clearer and louder tones than does the ordinary vibrating disk reproducer.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • noun historical A pneumatic type of sound-playback device used in the early part of the twentieth century.

Etymologies

from Wiktionary, Creative Commons Attribution/Share-Alike License

Formed from Ancient Greek αὐξητός (auksētos, "that can be increased") + φωνή (phōnē, "sound").

Examples

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