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Wiktionary
diethyl ether

n. (context organic compound English) A clear, colorless, highly flammable liquid with a low boiling point and chemical formula CH3-CH2-O-CH2-CH3. Used as a solvent and in the past as a general anesthetic.

WordNet
diethyl ether

n. a colorless volatile highly inflammable liquid formerly used as an inhalation anesthetic [syn: ether, ethoxyethane, divinyl ether, vinyl ether, ethyl ether]

Wikipedia
Diethyl ether (data page)

This page provides supplementary chemical data on diethyl ether.