Spumescence means the frothiness or foaminess of a liquid. There are several synonyms that can be used for this word, such as foaminess, effervescence, bubbly, frothy, and aerated. Foaminess refers to the presence of bubbles on the surface of a liquid, while effervescence implies the release of gas bubbles through a chemical reaction. Bubbly is a more informal term used to describe liquids that have a lot of bubbles, while frothy is used to describe a drink or liquid that has been whipped with air. Aerated means to introduce air into a liquid to make it bubbly or frothy. All these expressions can be used interchangeably to describe the spumescence of a liquid.