Definition of "headrest" []

• A support for the head, as at the back of a chair. (noun)
• A cushion attached to the top of the back of an automotive vehicle's seat, especially to prevent whiplash. Also called head restraint. (noun)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "The front one, set up for Obama, has about four swivel chairs (on one, the headrest is embroidered "Obama 08") and some seats set up like a conference table."
• "The backseats are equipped with electronic adjustments and each headrest has its own screen."
• "She slid in behind the wheel and thumped the back of her skull against the headrest."