n. pl. bis·cuits
1. A small cake of shortened bread leavened with baking powder or soda.
2. Chiefly British
a. A thin, crisp cracker.
b. A cookie.
3. A hard, dry cracker given to dogs as a treat or dietary supplement.
4. A thin, often oblong, waferlike piece of wood, glued into slots to connect larger pieces of wood in a joint.
5. A pale brown.
6. pl. biscuit Clay that has been fired once but not glazed. Also called bisque2.
The American Heritage® Dictionary of the English Language, Fifth Edition copyright ©2019 by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Indo-European & Semitic Roots Appendices
Thousands of entries in the dictionary include etymologies that trace their origins back to reconstructed proto-languages. You can obtain more information about these forms in our online appendices:
The Indo-European appendix covers nearly half of the Indo-European roots that have left their mark on English words. A more complete treatment of Indo-European roots and the English words derived from them is available in our Dictionary of Indo-European Roots.