1. The capacity for or the practice of recognizing and respecting the beliefs or practices of others.
a. Leeway for variation from a standard.
b. The permissible deviation from a specified value of a structural dimension, often expressed as a percent.
3. The capacity to endure hardship or pain.
a. Physiological resistance to a toxin.
b. Diminution in the physiological response to a drug that occurs after continued use, necessitating larger doses to produce a given response.
c. The ability to digest or metabolize a food, drug, or other substance or compound: glucose tolerance.
a. Acceptance of a tissue graft or transplant without immunological rejection.
b. Unresponsiveness to an antigen that normally produces an immunologic reaction.
6. The ability of an organism to resist or survive infection by a parasitic or pathogenic organism.
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.