0 the part of a chair that supports the head, especially a support attached to the back of the seat of a car -- （椅子或汽車座椅的）頭枕，頭墊
All ten setups used a hard plastic headrest to extend the neck and tilt the chin back.
A headrest and a chinrest were used to keep the subject's head immobile during recording.
A chinrest and a headrest prevented the subject from making head movements.
Nevertheless, the springcentred joystick emulation strategies implemented with spring-less devices for wheelchair control have shown their feasibility, both with the devices mentioned above and with a headrest control device.
I know of no evidence that injuries have been caused by headrests and am not persuaded that legislation is required.
There are no requirements governing the fitting of headrests or head restraints to motor vehicles in this country.
I also want to look into the point which she raises about headrests.
The pilot sat semi-reclined in an adjustable back-rest seat with headrest and non-adjustable rudder pedals.
