ether has definitions from the fields of chemistry,medicine,pharmacology,surgery
1
[ noun ] a medium that was once supposed to fill all space and to support the propagation of electromagnetic waves

Synonyms

aether

Related terms

medium

2
[ noun ] (archaic) the fifth and highest element after air and earth and fire and water; was believed to be the substance composing all heavenly bodies

Synonyms

quintessence

Related terms

element archaism

3
[ noun ] (chemistry) any of a class of organic compounds that have two hydrocarbon groups linked by an oxygen atom

Related terms

organic_compound

4
[ noun ] (chemistry,medicine,pharmacology,surgery) a colorless volatile highly inflammable liquid used as an inhalation anesthetic
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