1. Decomposition into fragments or parts; disintegration.
2. Indulgence in sensual pleasures; debauchery.
3. Termination or extinction by disintegration or dispersion: The dissolution of the empire was remarkably swift.
4. Extinction of life; death.
5. Annulment or termination of a formal or legal bond or relationship.
6. Formal dismissal of an assembly or legislature.
7. Reduction to a liquid form; liquefaction.
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.