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78

[sev-uh n-tee-eyt]
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noun, plural 78s, 78's.
  1. an early type of shellac-based phonograph record that played at 78 revolutions per minute.
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Origin of 78

First recorded in 1950–55
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

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