at·mos·pher·ic (ăt′mə-sfîrĭk, -sfĕr-) also at·mos·pher·i·cal (-ĭ-kəl)
1. Of, relating to, or existing in the atmosphere.
2. Produced by, dependent on, or coming from the atmosphere.
3. Resembling or representing the atmosphere; having or giving the effect of translucence: a painting suffused with a hazy, atmospheric glow.
4. Intended to evoke a particular emotional tone or aesthetic quality: lush atmospheric touches in every room.
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.