ether

Từ điển WordNet v3.1 - WordNet Dictionary

noun

1. the fifth and highest element after air and earth and fire and water;
was believed to be the substance composing all heavenly bodies
• Syn:
quintessence
• Derivationally related forms:
ethereal, quintessential (for: quintessence)
• Usage Domain:
archaism, archaicism
• Hypernyms:
element
2. any of a class of organic compounds that have two hydrocarbon groups linked by an oxygen atom
• Derivationally related forms:
ethereal
• Hypernyms:
organic compound
3. a colorless volatile highly inflammable liquid formerly used as an inhalation anesthetic
• Syn:
ethoxyethane, divinyl ether, vinyl ether, diethyl ether, ethyl ether
• Derivationally related forms:
ethereal, etherize, etherify
• Hypernyms:
inhalation anesthetic, inhalation anaesthetic, inhalation general anesthetic, inhalation general anaesthetic
• Hyponyms:
enflurane, Ethrane
4. a medium that was once supposed to fill all space and to support the propagation of electromagnetic waves
• Syn:
aether
• Hypernyms:
medium

• Từ đồng nghĩa / Synonyms:
  ethoxyethane, divinyl ether, vinyl ether, diethyl ether, ethyl ether, aether, quintessence