ether
The medium breathed by human beings; the air.
Other meanings
The sky, the heavens; the void, nothingness.
Often as and more fully as : The hypothetical substance permeating space, functioning as a medium for electromagnetic waves to propagate through, and which does not exert resistance to the movement of matter
Word history
From Ancient Greek "αἰθήρ".
Where this comes from
This definition is adapted from “ether” on Wiktionary, by its contributors, published under CC BY-SA 4.0. This page is published under the same licence.