A high-speed train.
- Operated or designed for operation at high speed: a high-speed printer.
- Taking place at high speed: a high-speed chase.
- Having a speed of 50–500 frames per second, as movie film, to record events that occur too rapidly for usual photography.
(comparative more high-speed, superlative most high-speed)
- That operates, moves or takes place at a greater than normal speed.