n.(used with a sing. verb)
The dynamics of bodies moving relative to gases, especially the interaction of moving objects with the atmosphere.
(click for a larger image)aerodynamics
top: high drag on a less aerodynamic shape
bottom: low drag on a more aerodynamic shape
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.