ETYM From Drive.
1. The operator of a motor vehicle.
2. Someone who drives animals that pull a vehicle.
3. (Computer science) A program that determines how a computer will communicate with a peripheral device; SYN. device driver.
4. A golf club used for hitting long shots from the tee; SYN. number one wood.
5. A golfer who hits the golf ball with a driver.
1. One that excites.
2. A generator or battery that supplies the electric current used to produce the magnetic field in another generator or motor.
3. An electrical oscillator that generates the carrier frequency (as for a radio transmitter).
1. A thief who steals goods that are on display in a store; SYN. shoplifter.
2. An additional dose that makes sure the first dose was effective; SYN. booster dose, booster shot, recall dose.
3. The first stage of a multistage rocket; SYN. booster rocket, booster unit, multistage rocket, takeoff booster, takeoff rocket.
First-stage rocket of a space-launching vehicle, or an additional rocket strapped to the main rocket to assist takeoff.
The US Delta rocket, for example, has a cluster of nine strap-on boosters that fire on lift off. Europe's Ariane 3 rocket uses twin strap-on boosters, as does the US space shuttle.