Used in music and sound engineering to denote the persistence of a note or sound.
Definitions
The continuous period or quality during which a musical note or sound is held without decay. The sustain on that synthesizer patch is impressive.
Used attributively in combinations such as 'sustain pedal' to describe devices or features that prolong sound.
Definitions
Attributive. Relating to or designed to prolong or continue a sound, action, or process. She adjusted the sustain pedal for a softer release.