 ether |
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| 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 | |
| Synonyms: | divinyl_ether vinyl_ether diethel_ether ethyl_ether diethyl_ether ethoxyethane | |
| Related terms: | inhalation_anesthetic enflurane etherize | |
| Similar spelling: |
Etter Ethier either Eutheria |
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