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heat wave

noun
1.
an air mass of high temperature covering an extended area and moving relatively slowly.
2.
a period of abnormally hot and usually humid weather.
Origin
1875-1880
1875-80
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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Examples from the web for heat wave
  • When their predictions turn from cold snap to heat wave, say, it can play havoc with the forward price of gas.
  • Climatologists say heat wave takes toll on air conditioners.
  • Summer's heat wave has many of us running for cover.
  • You've been caught in a rolling blackout that state regulators have ordered as a heat wave brings on millions of air conditioners.
  • heat wave or winter chill, we're always up for a bowl of pasta, especially when it's loaded with the season's freshest flavors.
  • If the former, then it is probably reasonable to link the heat wave with global warming.
  • It is important to know the terms used to describe heat wave conditions.
British Dictionary definitions for heat wave

heat wave

noun
1.
a continuous spell of abnormally hot weather
2.
(not in technical use) an extensive slow-moving air mass at a relatively high temperature
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Difficulty index for heat wave

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Word Value for heat

7
6
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Quotes with heat wave