ebullition
noun
[ ˌɛbəˈlɪʃ(ə)n ]
• the action of bubbling or boiling.
• "because the bath is now so cold, no further violent ebullition will occur"
Origin:
late Middle English (denoting a state of agitation of the bodily humours): from late Latin ebullitio(n- ), from ebullire ‘boil up’ (see ebullient).