v. dif·fer·en·ti·at·ed, dif·fer·en·ti·at·ing, dif·fer·en·ti·ates
1. To constitute the distinction between: subspecies that are differentiated by the markings on their wings.
2. To perceive or show the difference in or between; discriminate.
3. To make different by alteration or modification.
4. Mathematics To calculate the derivative or differential of (a function).
1. To become distinct or specialized; acquire a different character.
2. To make distinctions; discriminate.
3. Biology To undergo differentiation.
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.