Noun
The usually vertical portion of a chair or similar piece of furniture that supports the back.
A loose ornamental covering for the back of a sofa or chair.
Source: en.wiktionary.orgCheck out some of the photos below and keep an eye out on our flights for Taylor Swift on your seatback TV! Source: Internet
Collapse the passenger front seatback, and you can even slide in a surfboard. Source: Internet
The seatback is sculpted with large “wings,” designed to help secure drivers during acceleration. Source: Internet