headrest
US /ˈhed.rest/
UK /ˈhed.rest/

1.
头枕
a support for the head, especially one attached to the back of a seat
:
•
Adjust the car seat's headrest for comfort and safety.
调整汽车座椅的头枕以获得舒适和安全。
•
The airplane seat had a comfortable, adjustable headrest.
飞机座椅有一个舒适、可调节的头枕。