Of or relating to gramophones; having qualities characteristic of sound reproduction by gramophone.
From gramophone + -ical suffix (a more elaborate form of -ic); used interchangeably with 'gramophonic' in historical texts.
The existence of both 'gramophonic' and 'gramophonical' shows how English speakers loved adding extra syllables to technical terms—this over-elaboration often signals when a word comes from an exciting new technology.
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