"heatwave" meaning in English

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  "etymology_text": "From heat + wave.",
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          "extra": "period of exceptionally hot weather",
          "word": "heat wave"
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          "word": "cold spell"
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          "word": "cold wave"
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          "ref": "2023 July 7, “UN says climate change ‘out of control’ after likely hottest week on record”, in The Guardian, →ISSN:",
          "text": "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.",
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          "ref": "2025 August 11, Ajit Niranjan, “Southern Europe swelters under deadly heatwave as temperatures pass 40C”, in The Guardian, →ISSN:",
          "text": "Both weather agencies forecast temperatures above 40C over the coming days and called for vigilance amid forecasts of “a very intense, even exceptional” heatwave in parts of the continent.",
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          "ref": "2021, Murray du Plessis, Modern Meditations: 101 Ways to Slow Down & Connect to Spirit:",
          "text": "On a hot summer's day, one can literally see heatwaves shimmering off the surfaces of inanimate objects.",
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      "glosses": [
        "A heat haze."
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  "word": "heatwave"
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  "etymology_text": "From heat + wave.",
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          "text": "On a hot summer's day, one can literally see heatwaves shimmering off the surfaces of inanimate objects.",
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      ],
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        "A heat haze."
      ],
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