A carseat with a headrest.
headrest definition by Webster's New World
Webster's New World College Dictionary Copyright © 2010 by Wiley Publishing, Inc., Cleveland, Ohio. Used by arrangement with John Wiley & Sons, Inc.
a support for the head, as on a dentist's chair, automobile seat, etc.
headrest definition by American Heritage Dictionary
- A support for the head, as at the back of a chair.
- A cushion attached to the top of the back of an automotive vehicle's seat, especially to prevent whiplash. Also called head restraint.