n. the back piece of a chair, used to support the sitter's back
the GNU version of the Collaborative International Dictionary of English
n. a support that you can lean against while sitting.
WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
n. a support that you can lean against while sitting
Word Usage
"The sun chair, its beams rising from the backrest, is a Rosenthal design, using borrowed and universal symbols, and it has been copied and interpreted so much that it has become part of the landscape."