Sinonim backplate

English Thesaurus

1. plate armor protecting the back; worn as part of a cuirass (noun.artifact)

hypernym	:	armor plate, armor plating, armour plate, plate armor, plate armour,
definition	:	specially hardened steel plate used to protect fortifications or vehicles from enemy fire (noun.artifact)

part meronym	:	cuirass,
definition	:	medieval body armor that covers the chest and back (noun.artifact)