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.] eb'ul·li'tion·al adj.
(ěb'ə-lĭsh'ən) 