ebullition

n.

1. The state or process of boiling.
2. A sudden, violent outpouring, as of emotion: “did not . . . give way to any ebullitions of private grief” (Thackeray).

[Middle English ebullitioun, from Late Latin ēbullītiō, ēbullītiōn-, from Latin ēbullītus, past participle of ēbullīre, to bubble up. See ebullient.]

ebullitional eb'ul·li'tion·al adj.

the act, process or state of boiling or bubbling up; a sudden violent outburst or display