Used as an uncountable noun referring to the act or state of seething or intense agitation.
Translations
The seething of the cauldron filled the air with steam.
Le bouillonnement du chaudron emplissait l’air de vapeur.
effervescenceEmployé surtout au sens figuré pour une agitation vive. Definitions
The act or process of seething; a state of intense agitation or turmoil. The seething of the cauldron filled the air with steam.