1. Pieces of fabric used for stuffing; batting.
a. Insulation, usually made of fiberglass, that is used chiefly to prevent heat loss and is manufactured in sheets or rolls.
b. A roll or section of such insulation.
[Variant of BAT1, cotton or wool fiber wadded into rolls or sheets.]
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.