boiling

Etymology

From boil + -ing.

verb

1. present participle and gerund of boil

noun

1. The process of changing the state of a substance from liquid to gas by heating it to its boiling point.
2. (uncountable) An animation style with constantly changing wavy outlines, giving a shimmering or wobbling appearance.

adj

1. That boils or boil.
   boiling kettle  boiling oil
2. (informal, hyperbolic) Of a thing: extremely hot or active.
   The radiator is boiling – I’m going to turn it down a bit.
   As I collected some individuals from a nest, an alarm was sent and a boiling mass of ants issued from the colony. 2016, Justin O. Schmidt, The Sting of the Wild, Johns Hopkins University Press,, page 37
3. (informal, hyperbolic) Of a person: feeling uncomfortably hot.
   I’m boiling – can’t we open a window?
4. (informal, hyperbolic) Of the weather: very hot.
   It’s boiling out today!

adv

1. (of adjectives associated with heat) Extremely
   He was boiling mad.