rusk
/rʌsk/noun
1- a light, dry biscuit or piece of rebaked bread, especially one prepared for use as baby food（尤指用作婴儿食品的）脆饼干; 面包干。
1.1
- mass noun rebaked bread used, for example, as extra filling for sausages, and formerly as rations at sea（如用作香肠馅的, 旧时用作航海口粮的）面包干。
词源
late 16th cent.: from Spanish or Portuguese rosca 'twist, coil, roll of bread', of unknown ultimate origin.