cuirass
/kwɪˈræs/noun
1
- historical a piece of armour consisting of breastplate and backplate fastened together〈史〉（包括胸甲和背甲的）上半身铠甲。
2
- Medicine an artificial ventilator which encloses the body, leaving the limbs free, and forces air in and out of the lungs by changes in pressure【医】人工呼吸装置。
词源
late Middle English: from Old French cuirace, based on late Latin coriaceus (adjective), from corium 'leather' (of which a cuirass was originally made).