whirl·pool (wûrlpl′, hwûrl-)
1. A rapidly rotating current of water; a vortex.
2. Something, such as a situation, that is confusing or tumultuous and is easy to be drawn into or difficult to get out of: was sucked into a whirlpool of despair.
3. A bathtub or pool having jets of warm water that can be directed toward a body part as for therapeutic purposes.
The American Heritage® Dictionary of the English Language, Fifth Edition copyright ©2020 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.