The bubbling and heaving of water, etc. in process of boiling (melting, etc.). Also, one such motion; a ‘wallop’, a bubble.

The action or fact of bringing a liquid to the boil, or of boiling up liquid in a pot; the fact of coming to the boil; an instance of this. Also…

The action of bubbling up under the influence of heat; ebullition.

Boiling or glowing heat. Also, Violent ebullition, fermentation.

Of water: Boiling, seething. Obsolete.

In form plaw. An act or example of boiling; effervescence; ebullition. Obsolete (English regional (East Anglian) in later use).

The action of boiling up; heated agitation of the particles of a fluid. Obsolete.

A boiling up; fermentation.

Effervescent state or condition; also loosely = effervescence, n.

Boiling, overheating; an instance of this. Frequently figurative: feverish disturbance.

The agitation on the surface of a boiling liquid; the sound of this. Obsolete.

(See quot. 1849.)