1. The act or an instance of iterating; repetition.
2. A form, adaption, or version of something: the latest iteration of a popular app.
3. Mathematics A computational procedure in which a cycle of operations is repeated, often to approximate the desired result more closely.
a. The process of repeating a set of instructions a specified number of times or until a specific result is achieved.
b. One cycle of a set of instructions to be repeated: After ten iterations, the program exited the loop.
The American Heritage® Dictionary of the English Language, Fifth Edition copyright ©2019 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.