Definition from Wiktionary, the free dictionary
See also Ether
Alternative forms 
- aether (British spelling, obsolete in chemistry)
- æther (dated British spelling)
- aethyr, ethyr (archaic spellings)
- Rhymes: -iːθə(r)
- (organic chemistry, countable) A compound containing an oxygen atom bonded to two hydrocarbon groups.
- (organic chemistry, uncountable) Diethyl ether (C4H10O), a compound used as an early anaesthetic.
- (ancient philosophy and alchemy, uncountable) A classical physical element, considered as prevalent in the heavens and inaccessible to humans. In some versions of alchemy, this was the fifth element in addition to air, earth, fire and water.
- (archaic, physics, uncountable) A substance (aether) once thought to fill all space that allowed electromagnetic waves to pass through it and interact with matter, without exerting any resistance to matter or energy (disproved by Einstein in his Theory of Relativity).
- (poetic or literary) The sky or heavens; the upper air.
- For usage examples of this term, see the citations page.
Derived terms 
organic chemistry: a compound containing an oxygen atom bonded to two hydrocarbon groups
organic chemistry: diethyl ether, C4H10O
the fifth classic physical element
archaic: space filling substance
poetic and literary: the sky or heavens; the upper air
ether m (plural ethers)
- (broadcasting) air, broadcasting
- De televisieaanbieder gaat digitale televisie via de ether uitzenden. The television provider is going to broadcast digital television over the air.