from The American Heritage® Dictionary of the English Language, 4th Edition

  • n. A univalent organic radical, C2H5.

from Wiktionary, Creative Commons Attribution/Share-Alike License

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

from the GNU version of the Collaborative International Dictionary of English

  • n. A monatomic, hydrocarbon radical, C2H5 of the paraffin series, forming the essential radical of ethane, and of common alcohol and ether.

from The Century Dictionary and Cyclopedia

  • n. C2H5. The radical of ordinary alcohol and ether. It has never been obtained in the free state. Alcohol is the hydrate of ethyl.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • n. the univalent hydrocarbon radical C2H5 derived from ethane by the removal of one hydrogen atom


eth(er) + -yl.
(American Heritage® Dictionary of the English Language, Fourth Edition)



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