See also: heat wave

English edit

 
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Alternative forms edit

Etymology edit

From heat +‎ wave.

Noun edit

heatwave (plural heatwaves)

  1. A period of very hot weather.
    Antonyms: cold spell, cold wave
  2. A heat haze.
    • 2021, Murray du Plessis, Modern Meditations: 101 Ways to Slow Down & Connect to Spirit:
      On a hot summer's day, one can literally see heatwaves shimmering off the surfaces of inanimate objects.

Translations edit