'Ethyl' definitions:

Definition of 'ethyl'

(from WordNet)
noun
The univalent hydrocarbon radical C2H5 derived from ethane by the removal of one hydrogen atom [syn: ethyl, ethyl group, ethyl radical]

Definition of 'Ethyl'

From: GCIDE
  • Ethyl \Eth"yl\, n. [Ether + -yl.] (Chem.) A monatomic, hydrocarbon radical, C2H5 of the paraffin series, forming the essential radical of ethane, and of common alcohol and ether. [1913 Webster]
  • Ethyl aldehyde. (Chem.) See Aldehyde. [1913 Webster]

Synonyms of 'ethyl'

From: Moby Thesaurus