Heatwave
Meaning
A prolonged period of abnormally hot weather, often accompanied by high humidity, which can be dangerous to human health and impact daily life.
Origin
While the individual words 'heat' and 'wave' have ancient origins, describing warmth and a surging motion, their powerful union into 'heatwave' as a distinct meteorological phenomenon is a relatively modern development. This precise term gained prominence in the late 19th and early 20th centuries, a period marked by rapid urbanization and the systematic observation of weather. As societies became more complex and reliant on stable conditions, prolonged periods of extreme temperatures—capable of devastating crops, causing widespread illness, and halting commerce—demanded a specific, urgent descriptor. The phrase vividly captures the sense of an almost tangible surge of intense warmth washing over a region, impacting everything in its path, making it an indispensable term for describing a significant environmental challenge.
Examples
- The city is bracing for a severe heatwave next week, with temperatures expected to reach record highs.
- During the last heatwave, many elderly residents struggled with dehydration and heat exhaustion, prompting public health warnings.