• (RP, GA) IPA: /ˈbɔɪlɪŋ/

1. present participle of boil#English|boil

boiling (plural boilings)

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.

• French: ébullition, bouillonnement
• Italian: ebollizione
• Portuguese: ebulição, fervura
• Russian: кипе́ние

boiling

1. That boil#Verb|boils or boil.

   boiling kettle  boiling oil

2. (informal, hyperbole) Of a thing: extremely hot#Adjective|hot or active.
   • 1963, Margery Allingham, “Conference in the Morning”, in The China Governess: A Mystery, London: Chatto & Windus, OCLC 483591931 ↗, page 130 ↗:

     With a little manœuvring they contrived to meet on the doorstep which now, in mid-morning, was in a boiling stream of passers-by, hurrying business people speeding past in a flurry of fumes and dust in the bright haze.

   The radiator is boiling – I’m going to turn it down a bit.

3. (informal, hyperbole) Of a person: feel#Verb|feeling uncomfortably hot.

   I’m boiling – can’t we open a window?

4. (informal, hyperbole) Of the weather#Noun|weather: very hot.

   It’s boiling out today!

• French: bouillant
• German: kochend
• Italian: bollente
• Portuguese: fervente
• Spanish: hirviendo

• Italian: bollente
• Spanish: hirviendo

boiling (not comparable)

1. (of adjectives associated with heat) Extremely

   He was boiling mad.