English Words Starting With E

• ethan

  nounVery High (as a given name)
  /ˈiːθən/A masculine given name of Hebrew origin, meaning 'enduring', 'strong', 'firm'.
• ethan frome

  nounLow
  /ˌiːθən ˈfrəʊm/The title character of Edith Wharton's 1911 novella, a poor, stoic New England farmer trapped in a loveless marriage and a life of hardship.
• ethanal

  nounC2
  /ˈɛθənal/The systematic IUPAC name for the organic compound acetaldehyde.
• ethane

  nounC1+
  /ˈiːθeɪn/A colorless, odorless, flammable gaseous alkane hydrocarbon, with chemical formula C₂H₆.
• ethanedioic acid

  nounC2
  /ˌiːθeɪndaɪˈəʊɪk ˈæsɪd/A strong, poisonous dicarboxylic acid (HOOCCOOH) found in some plants like sorrel and rhubarb, used in cleaning and bleaching.
• ethanediol

  nounVery Low
  /ˌiːθeɪnˈdaɪɒl/A colourless, sweet-tasting, viscous liquid organic compound with the formula (CH₂OH)₂, used as an antifreeze and raw material.
• ethanim

  nounVery rare
  /ˈɛθənɪm/A name for the seventh month in the ancient Hebrew calendar.
• ethanoic acid

  nounC2
  /ˌɛθəˌnəʊɪk ˈæsɪd/The systematic IUPAC name for the organic chemical compound with the formula CH₃COOH; it is the main component of vinegar.
• ethanol

  nounB2
  /ˈɛθənɒl/A clear, colourless, flammable chemical compound, the type of alcohol found in alcoholic drinks and used as a solvent, fuel additive, and antiseptic.
• ethanolamine

  nounC2
  /ˌɛθənɒləˈmiːn/An organic chemical compound used as a building block in manufacturing, specifically a colorless, viscous liquid with both amine and alcohol functional groups.
• ethanoyl

  nounExtremely Low / Technical
  /ˈiːθəˌnɔɪl/The univalent acyl radical (CH₃CO–) derived from acetic acid; the acetyl radical.
• ethanoyl chloride

  nounVery Low Frequency / Technical
  /ˈiːθənɔɪl ˈklɔːraɪd/The systematic IUPAC name for acetyl chloride (CH₃COCl), a colorless, corrosive, and highly reactive acyl chloride derived from acetic acid.
• ethchlorvynol

  nounVery Rare (Specialized Technical)
  /ˌɛθklɔːˈrvaɪnɒl/A sedative and hypnotic drug, primarily used historically for the short-term treatment of insomnia.
• ethel

  nounVery Low
  /ˈɛθəl/An Old English word for 'homeland' or 'ancestral land', now rare and archaic.
• ethelbert

  nounVery Low
  /ˈɛθ(ə)lbət/A male given name of Old English origin, meaning 'noble and bright'.
• ethelred i

  nounVery Rare
  /ˈɛθəlrɛd ðə ˈfɜːst/A proper noun referring to the historical figure Ethelred I, King of Wessex from 865 to 871 AD.
• ethelred ii

  nounLow frequency (mostly in historical and academic contexts)
  /ˌɛθəlrɛd ði ʌnˈrɛdi/A historical figure, specifically an Anglo-Saxon king of England (c. 966–1016) from the House of Wessex.
• ethelwulf

  nounVery Rare
  /ˈɛθəlˌwʊlf/A proper noun, specifically the name of a 9th-century Anglo-Saxon king of Wessex.
• ethene

  nounC1-C2 (Specialized)
  /ˈɛθiːn/A colourless, flammable gaseous hydrocarbon (C₂H₄), the simplest alkene, used as a starting material for many plastics and chemicals.
• ethephon

  nounLow
  /ˈiːθɪfɒn/A plant growth regulator and ripening agent used in agriculture to promote fruit ripening, flowering, and other physiological processes.

Showing 3581–3600 of 4896 words.