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
Examples of ether in a Sentence
The balloon disappeared into the ether.
Recent Examples on the Web
In the past 24 hours, bitcoin has seen more than $550 million in short liquidations and ether more than $195 million.
—
Tanaya MacHeel, CNBC, 11 July 2025
The company offers up to 100% financing without liquidating bitcoin or ether.
—Becca Bratcher, Forbes.com, 26 June 2025
The price of ether, the world’s second-largest cryptocurrency by market capitalization and often viewed as a barometer of retail investor sentiment, dropped 8.5% on Sunday.
—Alexis Simmerman, Austin American Statesman, 23 June 2025
In March, Standard Chartered slashed its ether price target by more than half.
—Tanaya MacHeel, CNBC, 20 June 2025
See All Example Sentences for ether
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Tanaya MacHeel, CNBC, 11 July 2025
The company offers up to 100% financing without liquidating bitcoin or ether.
—Becca Bratcher, Forbes.com, 26 June 2025
The price of ether, the world’s second-largest cryptocurrency by market capitalization and often viewed as a barometer of retail investor sentiment, dropped 8.5% on Sunday.
—Alexis Simmerman, Austin American Statesman, 23 June 2025
In March, Standard Chartered slashed its ether price target by more than half.
—Tanaya MacHeel, CNBC, 20 June 2025
See All Example Sentences for ether
Cite this Entry
“Ether.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/ether. Accessed 21 Jul. 2025.
Copy CitationKids Definition
Medical Definition
ether
noun1
: 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
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