noun
rusk
RUSK/rʌsk/
A hard, dry biscuit or piece of twice-baked bread.
The broken rusk reveals a dry, porous interior and brittle crumbs.

Etymology
Rosca names a coil or spiral and a twisted roll of bread, supplying the bread connection behind the English biscuit name. Its deeper origin is unknown, possibly pre-Latin Iberian.
More examples
- He spreads butter on a rusk for breakfast.
- The bread slices go back into the oven to become rusks.
- Crushed rusks give the casserole a crisp topping.
Forms
rusk · rusks
Similar words
- toast
- Bread browned by heat, often still soft inside.
- cracker
- Usually thinner and made from dough rather than sliced bread.