78

[ sev-uh n-tee-eyt ]
/ ˈsɛv ən tiˈeɪt /

noun, plural 78s, 78's.

an early type of shellac-based phonograph record that played at 78 revolutions per minute.

Origin of 78

First recorded in 1950–55
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019