Hypertext Webster Gateway: "zwieback"
From Webster's Revised Unabridged Dictionary (1913) (web1913)
Zwieback \Zwie"back`\, n. [G., fr. zwie- two, twice (see
{Twice}) + backen to bake.]
A kind of biscuit or rusk first baked in a loaf and
afterwards cut and toasted.
From WordNet (r) 1.7 (wn)
zwieback
n : slice of sweet raised bread baked again until it is brown
and hard and crisp [syn: {rusk}, {Brussels biscuit}, {twice-baked
bread}]
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