aer·i·al (ârē-əl, ā-îrē-əl)
1. Of, in, or caused by the air.
2. Existing or living in the air.
3. Reaching high into the air; lofty.
4. Suggestive of air, as in lightness; airy.
5. Unsubstantial; imaginary.
6. Of, for, or by means of aircraft: aerial photography.
7. Botany Growing or borne above the ground or water: aerial roots.
1. A radio antenna, especially one suspended in or extending into the air.
a. An acrobatic maneuver performed in midair, as in skateboarding.
b. A flip in which the body turns over sideways with the arms and legs spread similar to a cartwheel.
[From Latin āerius, from Greek āerios, from āēr, air; see wer-1 in the Appendix of Indo-European roots.]
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.