n. pl. dis·a·bil·i·ties
a. A physical or mental condition that significantly limits a person's motor, sensory, or cognitive abilities.
b. The state of having such a condition. discrimination based on disability.
a. A program that provides financial support to people with such conditions: has been on disability for a month.
b. The economic assistance provided by such a program: has been getting disability since the accident.
3. Law Lack of legal capacity to perform some act, such as to enter into a contract, because of infancy or lack of soundness of mind.
The American Heritage® Dictionary of the English Language, Fifth Edition copyright ©2018 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.