What does ether mean?
nounA hypothetical substance once believed to be a weightless, invisible, and highly elastic substance thought to be the material of which the stars and planets are composed; a hypothetical substance that is thought to be a carrier of electromagnetic waves, especially light.
Example
"The alchemist spent years searching for the elusive ether that would grant him eternal life."
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.