Source : Webster's Revised Unabridged Dictionary (1913)

Diethylamine \Di*eth`yl*am"ine\, n. [Pref. di- + ethylamine.]
   (Chem.)
   A colorless, volatile, alkaline liquid, {NH(C2H5)2}, having a
   strong fishy odor resembling that of herring or sardines. Cf.
   {Methylamine}.