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The Collaborative International Dictionary
Elixation

Elixation \El`ix*a"tion\, n. [Cf. F. ['e]lixation.] A seething; digestion. [Obs.]
--Burton.

Wiktionary
elixation

n. 1 (context now rare English) boiling, stewing. 2 (context now rare English) digestion (in the stomach).