• WordNet 3.6
    • n zwieback slice of sweet raised bread baked again until it is brown and hard and crisp
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Webster's Revised Unabridged Dictionary
    • n Zwieback tsvē"bäk` A kind of biscuit or rusk first baked in a loaf and afterwards cut and toasted.
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Century Dictionary and Cyclopedia
    • n zwieback Slices of bread made from a rich dough, which have been heated in an oven until they are thoroughly dried and are of a deep yellow color.
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Chambers's Twentieth Century Dictionary
    • n Zwieback zvī′bak biscuit rusk, or a sweet spiced bread toasted.
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Webster's Revised Unabridged Dictionary
G., fr. zwie-, two, twice (see Twice) + backen, to bake
Chambers's Twentieth Century Dictionary


In literature:

The zwieback may be prepared in considerable quantity and kept on hand in readiness for use.
"Science in the Kitchen." by Mrs. E. E. Kellogg
The dining-room was full of smoke, but the coffee and my first taste of zwieback were delicious.
"As Seen By Me" by Lilian Bell
Cultivate the habit of eating zwieback, hard crackers or other hard food substances that require real vigorous chewing.
"Vitality Supreme" by Bernarr Macfadden
She must be sure and pack her prayer books and Bible, and twenty pounds of zwieback at the least.
"The Promised Land" by Mary Antin
Zwieback or bread crumbs may be given in small quantities.
"The Eugenic Marriage, Volume IV. (of IV.)" by Grant Hague
Zwieback (twice baked) can be recommended, especially for those who suffer from indigestion.
"Papers on Health" by John Kirk
This zwieback was the whole stock of a Yukon grocer purchased when the supply we ordered did not arrive.
"The Ascent of Denali (Mount McKinley)" by Hudson Stuck
He was advised to use dry foods, such as toast, zwieback and shredded wheat.
"Alcohol: A Dangerous and Unnecessary Medicine, How and Why" by Martha M. Allen
Strawberries or raspberries with rich milk and zwieback.
"Food for the Traveler" by Dora Cathrine Cristine Liebel Roper
Zwieback Koch 115 427.
"Desserts and Salads" by Gesine Lemcke

In news:

4 crispy cracker breads, zwieback, or Melba toasts.
Cooking Anything From Apple Pie To Zwiebacks With These Tips.