Found 2 items, similar to backplate.
English → English (WordNet) Definition: backplate backplate n : plate armor protecting the back; worn as part of a cuirass
English → English (gcide) Definition: Backplate Backpiece \Back"piece`\, Backplate \Back"plate`\, n. [Back, n. or a. + piece, plate. ] 1. A piece, or plate which forms the back of anything, or which covers the back. [1913 Webster] 2. Specifically: A piece of plate armor protecting the back; -- it is worn as part of a cuirass. [WordNet 1.5]