The back of a chair or other type of seating.(noun)
American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Use "seatback" in a sentence
"An award-winning general-interest publication, Spirit is available in seatback pockets of every Southwest Airlines flight."
"I now list 10 and a half reasons why the afflicted call the seatback their place in the sun:"
""Putting a melting chocolate bar in a seatback is a way of punishing the airline for shoddy treatment," said Robert Bor, a clinical aviation psychologist in London."