say it: EE-thur
ether is a noun meaning "the fifth and highest element after air and earth and fire and water; was believed to be the substance composing all heavenly bodies". It carries 4 recorded senses.
the fifth and highest element after air and earth and fire and water; was believed to be the substance composing all heavenly bodies
archaism
any of a class of organic compounds that have two hydrocarbon groups linked by an oxygen atom
a colorless volatile highly flammable liquid formerly used as an inhalation anesthetic
Forms marked · are formed by the regular rule rather than recorded in the source data. English keeps a few hundred irregulars and the rest follow the pattern, so the rule is right far more often than not — but it is a rule, and the mark says so.
Definitions, synonyms and semantic relations for ether come from Princeton University’s WordNet. The pronunciation comes from the CMU Pronouncing Dictionary. Commonness is measured against a corpus of everyday English. Full sources and licences.