ether

n. colorless liquid used as a solvent and formerly as an anesthetic (Chemistry)

Ether is the general name for a class of chemical compounds which contain an ether group — an oxygen atom connected to two (substituted) alkyl or aryl groups — of general formula R–O–R'. A typical example is the solvent and anesthetic diethyl ether, commonly referred to simply as "ether" (ethoxyethane, CH3-CH2-O-CH2-CH3).
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Ether 1. an organic compound having an oxygen atom bonded to two carbon atoms; R–O–R'. 2. C2H5OC2H5 ; the first inhalational anesthetic used for [more]Ether - Community and Resources

Noun
1. a colorless volatile highly inflammable liquid formerly used as an inhalation anesthetic
(synonym) ethoxyethane, divinyl ether, vinyl ether, diethyl ether, ethyl ether
(hypernym) inhalation anesthetic, inhalation anaesthetic, inhalation general anesthetic, inhalation general anaesthetic
(hyponym) enflurane, Ethrane
(derivation) etherize, etherise
2. the fifth and highest element after air and earth and fire and water; was believed to be the substance composing all heavenly bodies
(synonym) quintessence
(hypernym) element
(classification) archaism, archaicism
3. any of a class of organic compounds that have two hydrocarbon groups linked by an oxygen atom
(hypernym) organic compound
4. a medium that was once supposed to fill all space and to support the propagation of electromagnetic waves
(synonym) aether
(hypernym) medium

n. ether, colorless liquid used as a solvent and formerly as an anesthetic (Chemistry)