e·las·tic·i·ty (ĭ-lă-stĭsĭ-tē, ē′lă-)
1. The condition or property of being elastic; flexibility.
a. The property of returning to an initial form or state following deformation.
b. The degree to which this property is exhibited.
3. A measure of how changes in price affect supply or demand for a given good, equal to the percentage of change in supply or demand divided by the percentage of the price change.
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.