Boiling: said of liquids, molten metal, etc. In Old English often figurative, fervent. Also in wallinde hot, boiling hot, walling wood, raging mad.

Of liquid: boiling. Also of a vessel: containing boiling liquid. Obsolete.

Originally, of liquids, a cauldron, etc.: Boiling. In modern use, a somewhat rhetorical expression for: Intensely heated (said of solids, the…

Bubbling up under the influence of heat; at boiling temperature.

Also in form plawing. That boils, boiling. Obsolete.

That boils; boiling; agitated, as if boiling.

Boiling, bubbling.

In predicative use. Boiling, seething. Also figurative.