The Collaborative International Dictionary
Tumultuation
Tumultuation \Tu*mul`tu*a"tion\, n. [L. tumultuatio.]
Irregular or disorderly movement; commotion; as, the
tumultuation of the parts of a fluid. [Obs.]
--Boyle.
Wiktionary
tumultuation
n. (context obsolete English) Irregular or disorderly movement; commotion.