ethyl

E1T1H4Y4L1
UK/ˈɛθaɪl/UK/ˈɛθɪl/UK/ˈiːθaɪl/UK/ˈiːθɪl/

noun

The univalent hydrocarbon radical, C₂H₅, formally derived from ethane by the loss of a hydrogen atom.

Similar
EEtethyl groupethyl radical
Less commonScrabble 11

Meanings

ethyl1

nounethyl (plural ethyls)

plural ethyls

  1. chemistryThe univalent hydrocarbon radical, C₂H₅, formally derived from ethane by the loss of a hydrogen atom.

    Synonyms: E, Et

Ethyl2

proper noun
  1. alternativeAlternative form of Ethel: a female given name from Old English
    1 more example

    R. Jeeves: In my experience, ladies who spell Gladys with a W are seldom noted for their reliability, sir. It gives them romantic notions. B.W. Wooster: With a W, Jeeves? No, no, no, no. You spell it with a G. R. Jeeves: If I might draw your attention to the signature on the portrait, sir. B.W. Wooster: Good Lord! G-W? R. Jeeves: I blame Alfred Lord Tennyson and his Idylls of the King. It also accounts for Kathryn, Ysabel, and Ethyl, all spelt with a Y, but Gwladys is a particularly virulent form, sir.

    1993 May 16, “Return to New York”, in Jeeves and Wooster, Series 3, Episode 6

Synonyms & antonyms

nounThe univalent hydrocarbon radical, C₂H₅, formally derived from ethane by the loss of a hydrogen atom.

Similar

More synonyms by meaning

nounthe univalent hydrocarbon radical C2H5 derived from ethane by the removal of one hydrogen atom

Similar
ethyl groupethyl radical
Broader
alkylalkyl groupalkyl radical

Synonym sets from Open English WordNet, CC BY 4.0.

Origin

  1. Proto-Indo-European*h₂eydʰ-
  2. Proto-Hellenic*áitʰō
  3. Ancient Greekαἴθω (aíthō)
  4. Ancient Greekᾱ̓ήρ (āḗr)influ.?
  5. Ancient Greekαἰθήρ (aithḗr)
  6. Latinaethēr
  7. GermanÄther
  8. GermanEther
  9. Proto-Indo-European*swel-der.?
  10. Ancient Greekῡ̔́λη (hū́lē)
  11. GermanEthy
  12. Englishethyl

From German Ethyl, from Ether + -yl.

Full word history & related roots →

Translations

Catalan etil
  • etilC2H5
Chinese Cantonese 乙基
  • 乙基 (jyut³ gei¹)C2H5
Chinese Mandarin 乙基
  • 乙基 (yǐjī)C2H5
Finnish etyyli
  • etyyliC2H5
German Ethyl, Äthyl
  • EthylC2H5
  • ÄthylC2H5
Greek αιθύλιο
  • αιθύλιο (aithýlio)C2H5
Hungarian etil
  • etilC2H5
Irish eitil
  • eitilC2H5
Italian etile
  • etileC2H5
Polish etyl
  • etylC2H5
Portuguese etilo, etila
  • etiloC2H5
  • etilaC2H5
Russian эти́л
  • эти́л (etíl)C2H5
Spanish etilo
  • etiloC2H5
Swedish etyl
  • etylC2H5
Turkish etil
  • etilC2H5

Rhymes & wordplay

Rhymes with ethyl

All rhymes →

Sounds the same

Ethel (for one pronunciation of ethyl)

Anagrams

Cite this entry
APA

ethyl. (n.d.). In WatkinsX Dictionary. Retrieved November 3, 2026, from https://dictionary.watkinsx.com/word/ethyl

MLA

“ethyl.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/ethyl. Accessed November 3, 2026.

Chicago

WatkinsX Dictionary, s.v. “ethyl,” accessed November 3, 2026, https://dictionary.watkinsx.com/word/ethyl.

Source: ethyl on Wiktionary, CC BY-SA 4.0.