- noun1. the cardinal number that is the sum of seventy and eight• Hypernyms: ↑large integer2. a shellac based phonograph record that played at 78 revolutions per minute• Syn: ↑seventy-eightadjectivebeing eight more than seventy• Similar to: ↑cardinal
* * */sev"euhn tee ayt"/, n., pl. 78s, 78's.an early type of shellac-based phonograph record that played at 78 revolutions per minute.[1950-55]
* * *sev|en|ty-eight or 78 «SEHV uhn tee AYT», noun.a phonograph record which revolves at 78 revolutions per minute.
Useful english dictionary. 2012.