constant velocity joint
nounThe American Heritage® Dictionary of the English Language, 4th edition Copyright © 2010 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
A universal joint used especially in front-wheel drive cars that allows power to be transmitted from a transaxle to an axle or from an axle to a wheel even at sharp angles, as when the suspension moves up and down. Also called CV joint.