a. A guard over each wheel of a motor vehicle, for example, that is shaped and positioned so as to block the splashing of water or mud.
b. A device at the front end of a locomotive or streetcar designed to push aside obstructions.
2. A cushioning device, such as a bundle of rope or a piece of timber, used on the side of a vessel or dock to absorb impact or friction.
3. A screen or metal framework placed in front of a fireplace to keep hot coals and debris from falling out.
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.