Pronunciation: (kwi-ras'), [key]
1. Also called corselet. defensive armor for the torso comprising a breastplate and backplate, originally made of leather.
2. either of the plates forming such armor.
3. any similar covering, as the protective armor of a ship.
4. Zool.a hard shell or other covering forming an indurated defensive shield.
to equip or cover with a cuirass.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.