Of an engine, a motor vehicle, etc.: modified for higher performance.
Intoxicated by alcohol or drugs.
Excited.
Improved.
Of a racehorse: injected with a substance to make it run faster or to change its temperament.
Capable of moving at high speeds.
Fast; quick; rapid.
Any of various fast-flying hesperiid butterflies.
A moth of the family Hepialidae, swift moth, ghost moth.
A small plain-colored bird of the family Apodidae that resembles a swallow and is noted for its rapid flight.
A light, collapsible reel used to hold a hank of yarn in order to wind off skeins or balls.
The main cylinder of a carding-machine.
Any of certain lizards of the genus Sceloporus.