noun
- very fine grooves cut into the surface of a long-playing phonograph record to hold more music
Usage: technical; music technology
Examples
- The LP record’s microgrooves allowed for up to 30 minutes of music per side.
- Microgrooves revolutionized the music industry by enabling longer recordings.
- The stylus carefully tracked the microgrooves to reproduce the sound.
- Dust in the microgrooves could cause skipping or poor sound quality.
- Early stereo records used microgrooves to encode separate left and right channels.
- The invention of microgrooves made 78 RPM records largely obsolete.