資料來源 : Webster's Revised Unabridged Dictionary (1913)

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.

   {Ethyl aldehyde}. (Chem.) See {Aldehyde}.