backplate
NounWordNet 3.0
Noun (1)
- plate armor protecting the back; worn as part of a cuirass
Webster's Dictionary (GCIDE)
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] Backrack