n. Greek Mythology
The poetic personification of the clear upper air breathed by the Olympians.
[Latin Aethēr, from Greek aithēr, upper air.]
The American Heritage® Dictionary of the English Language, Fourth Edition Copyright © 2007, 2000 by Houghton Mifflin Company. Updated in 2009. Published by Houghton Mifflin Company. All rights reserved.
