eb·ul·li·tion \ˌebəˈlishən, ˌēb-\noun (-s) Etymology: Late Latin ebullition-, ebullitio, from Latin ebullitus (past participle of ebullire) + -ion-, -io -ion 1.: the act, process, or state of boiling or bubbling up 2.: a sudden and violent outburst or display < an ebullition of chivalry, indignation, and racial solidarity — Douglas Stewart >