1. The act, condition, quality, or fact of converging.
2. Mathematics The property or manner of approaching a limit, such as a point, line, function, or value.
3. The point of converging; a meeting place: a town at the convergence of two rivers.
4. Physiology The coordinated turning of the eyes inward to focus on an object at close range.
5. Biology The adaptive evolution of superficially similar structures, such as the wings of birds and insects, in unrelated species subjected to similar environments. Also called convergent evolution.
The American Heritage® Dictionary of the English Language, Fifth Edition copyright ©2022 by HarperCollins Publishers. 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.