1
a
: the rarefied element formerly believed to fill the upper regions of space
b
: the upper regions of space : heavens
2
a
: a light volatile flammable liquid C4H10O used chiefly as a solvent and especially formerly as an anesthetic
b
: any of a class of organic compounds characterized by an oxygen atom attached to two carbon atoms
3
a
or less commonly aether : a medium that in the wave theory of light permeates all space and transmits transverse waves
b
etheric
i-ˈther-ik How to pronounce ether (audio)
-ˈthir-
adjective

Examples of ether in a Sentence

The balloon disappeared into the ether.
Recent Examples on the Web The message is now lost to the digital ether, but as court testimony would later establish, the sender threatened to expose him. Carolyn Wells, Longreads, 21 June 2024 Alex’s stylishness ethers into contemporary trends, think Y2K with bold traditional wear. Essence, 20 June 2024 Williams’s special, intended to capitalize on his reputation as a loose cannon, instantly disappeared into the cultural ether. Kathryn Vanarendonk, Vulture, 6 May 2024 The brand which typically ethers into streetwear and athleisure territory has been excelling at offering elevated menswear staples as of late. Robyn Mowatt, Essence, 28 May 2024 See all Example Sentences for ether 

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'ether.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History

Etymology

Middle English, from Latin aether, from Greek aithēr, from aithein to ignite, blaze; akin to Old English ād pyre — more at edify

First Known Use

14th century, in the meaning defined at sense 1a

Time Traveler
The first known use of ether was in the 14th century

Dictionary Entries Near ether

Cite this Entry

“Ether.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/ether. Accessed 18 Jul. 2024.

Kids Definition

ether

noun
1
a
: an invisible substance once believed to fill the upper regions of space
b
: the upper regions of space : heavens
2
: an easily evaporated flammable liquid used chiefly to dissolve other substances and especially formerly as an anesthetic

Medical Definition

ether

noun
1
: a medium that in the wave theory of light permeates all space and transmits transverse waves
2
a
: a light volatile flammable liquid C4H10O used especially formerly chiefly as an anesthetic

called also diethyl ether, ethyl ether, ethyl oxide

b
: any of various organic compounds characterized by an oxygen atom attached to two carbon atoms

More from Merriam-Webster on ether

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