ebullition

• ⇰ A boiling or bubbling up of a liquid; the motion produced in a liquid by its rapid conversion into vapor.
• ⇰ Effervescence occasioned by fermentation or by any other process which causes the liberation of a gas or an aëriform fluid, as in the mixture of an acid with a carbonated alkali.
• ⇰ A sudden burst or violent display; an outburst; <as>as, an <ex>ebullition</ex> of anger or ill temper</as>.