Word.ws English Dictionary

letheon

/ˈliːθiːən/

letheon noun: diethyl ether, used as an anaesthetic agent.

Noun

letheon (uncountable)

  1. (archaic) diethyl ether, used as an anaesthetic agent.

Origin of letheon

From New Latin lēthēon, from Ancient Greek λήθη (lḗthē, “forgetting, forgetfulness”).

Words formed from letheon

Questions about letheon

What does letheon mean?
Letheon means diethyl ether, used as an anaesthetic agent.
What part of speech is letheon?
Letheon is a noun.
How do you pronounce letheon?
Letheon is pronounced /ˈliːθiːən/.

Words near letheon in the dictionary

  1. lethechs
  2. lethek
  3. letheks
  4. Lethem
  5. Lethenty
  6. letheon
  7. letheonize
  8. letheonized
  9. letheonizing
  10. lether
  11. lethera

Source and license

Adapted from Wiktionary: letheon (page history and authors). Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws reformatted the entry and added links. Wiktionary data of 2026-09-02.

Last updated:

Cite this entry: “letheon.” Word.ws, https://word.ws/letheon. Based on Wiktionary, CC BY-SA 4.0.