ebullition [ˌɛbəˈlɪʃən] n.
1.) A boiling or bubbling up of a liquid; the motion produced in a liquid by its rapid conversion into vapor.
2.) Effervescence occasioned by fermentation or by any other process which causes the liberation of a gas or an aeriform fluid, as in the mixture of an acid with a carbonated alkali.
3.) A sudden burst or violent display; an outburst; as, an ebullition of anger or ill temper.
Etymology: Middle English ebullitioun, from Late Latin ebullitio, ebullition-, from Latin ebullitus, past participle of ebullire, to bubble up.
"My father, in this patient endurance of wrongs, which I mention, was very different, as the reader must long ago have noted; he had a much more acute and quick sensibility of nature, attended with a little soreness of temper; tho' this never transported him to any thing which looked like malignancy:yet in the little rubs and vexations of life, 'twas apt to shew itself in a drollish and witty kind of peevishness:He was, however, frank and generous in his nature;at all times open to conviction; and in the little ebullitions of this subacid humour towards others, but particularly towards my uncle Toby, whom he truly loved:he would feel more pain, ten times told (except in the affair of my aunt Dinah, or where an hypothesis was concerned) than what he ever gave" (The Life and Opinions of Tristram Shandy, Gentleman, Laurence Sterne, 1759).