Letheon

1 definition found

From The Collaborative International Dictionary of English v.0.48 [gcide]:

  Letheon \Le"the*on\ (l[=e]"th[-e]*[o^]n), n. [NL., fr. Gr.
     lh`qh.] (Med.)
     Sulphuric ether used as an an[ae]sthetic agent. [R.]
     [1913 Webster]