word
urban heat island
ER-bun HEET EYE-lund
ˈɜːrbən hiːt ˈaɪləndListen
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Syllable breakdown
urbanheatisland
Dictionary meaning
phenomenon where cities are significantly warmer than surrounding rural areas due to heat absorption by dark surfaces, reduced vegetation, and waste heat from energy use; can increase mortality during heat waves; mitigated by green roofs and reflective surfaces
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