seatback

or seat back

[ seet-bak ]
/ ˈsitˌbæk /
|

noun

the back support of a seat in an aircraft, motor vehicle, etc.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for seatback

  • And old Judge Priest came with him, and both of them lunged forward over the seatback at the ruffian, three feet away.

    Back Home|Irvin S. Cobb