Longman Dictionary of Contemporary English
Wiktionary
n. (context driving English) An act of turn around a car, involving one forward turn and two backward turns (or vice-versa)
WordNet
n. the act of turning a vehicle around in a limited space by moving in a series of back and forward arcs
Wikipedia
The three-point turn (sometimes called a Y-turn, K-turn, or broken U-turn) is the standard method of turning a vehicle around to face the opposite direction in a limited space, using forward and reverse gears. This is typically done when the road is too narrow for a U-turn.
Demonstrating this manoeuvre is commonly required in a driving test.
Usage examples of "three-point turn".
At the first side street I managed to hang a left across both lanes, hooked a three-point turn, pulled to the corner, and waited.
The broad platform above the dam had been partially dug and partially blasted out and was now wide enough that the truck could make half a three-point turn so its load would dump over the side.
Kafari did a careful three-point turn and shut down her engine, jumping down to throw the thermal blanket across the engine block again to prevent a heat plume from rising unchecked above the clifftops.
Nancy swung her car into a tight three-point turn and took off after them.
He plunged the car into reverse then executed the first third of a three-point turn.
Bart drove the van up to the barn, made a three-point turn, and backed the vehicle to the open barn door.
I did a three-point turn, positioning the car so I could avoid backing out.
Making a three-point turn, he switched off the car lights, and eased slowly back down on the shoulder.
But the tyre tracks he was following were fresh enough, and besides, he didn't fancy reversing all the way back along the trail, and there was no spot wide enough for a three-point turn.
He climbed back into his car, and made a showy three-point turn before taking a right along the north-west side of Le Reposoir's extensive grounds, in the opposite direction to Alien's Corners.