ebullition/ˌiːbəˈlɪʃən/EtymologyFrom Old French ebullition, from Latin ēbullītiō, from ēbulliō (“to boil”).ebullition means The act of boiling. Lexicurio rates it Rare gem — a strength score of 71 out of 100.nounThe act of boiling.“It overflows at one point and forms a little stream of hot water, which at a hundred yards' distance is still too hot to hold the hand in. A little further on, in a piece of rough wood, were two other springs not so regular in outline, but appearing to be much hotter, as they were in a continual state of active ebullition.”A sudden emotional outburst.“His threats—his severe exclamations were but ebullitions of keen vexation, of agony of mind.”