letheon

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.]
Webster's Revised Unabridged Dictionary, © 1996, 1998 MICRA, Inc.
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