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• heat wave

語源

From heat +‎ wave.

発音

• IPA: /ˈhitˌweɪv/

名詞

heatwave (plural heatwaves)

1. A period of very hot weather.

   Antonyms: cold spell, cold wave

   • 2023 July 7, “UN says climate change ‘out of control’ after likely hottest week on record”, in The Guardian‎, →ISSN:

     Various parts of the world have been experiencing heatwaves and on Thursday the EU’s climate monitoring service said the world had experienced its hottest June on record last month. […] In parts of China, an enduring heatwave has continued, with temperatures reaching above 35C.

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.

発音

• (General American) IPA: /ˈhit weɪv/

名詞

heat wave (plural heat waves)

1. (idiomatic) A period of exceptionally hot weather.

   Antonyms: cold spell, cold wave

   • 1933, Irving Berlin, “Heat Wave”, in As Thousands Cheer:

     We're havin a heat wave / A tropical heat wave / The temperatures rising, it isn't surprising / She certainly can, can can! / She started a heat wave / By letting her seat wave, / in such a way that the customers say / that she certainly can, can-can!

   1. (US, weather broadcasting) Three consecutive days with daytime high temperature of 90 degrees Fahrenheit or higher.
   2. (UK, weather broadcasting) A period of at least three consecutive days with daily high temperatures of the respective county's temperature threshold or higher.
2. An electromagnetic wave in the infrared spectrum.

Further reading

• heat wave on Wikipedia.Wikipedia