ebullition

She had excellent cause to remember the ebullition, for it was some time before she laughed again.

To scare the grocer with a slouch hat and a medieval oath was not only a youthful ebullition, it was a symbolic act.

Unlike that of the Great Geyser, it is always in ebullition, and its temperature is subject to comparatively slight differences.

Fred was right; the two elders did soon make it up, and the political ebullition seemed to be forgotten.

When aquafortis is poured on it it produces ebullition, especially, as I have found, if the Crystal has been pulverized.