heat island


noun
  1. an urban area having higher average temperature than its rural surroundings owing to the greater absorption, retention, and generation of heat by its buildings, pavements, and human activities.

Origin of heat island

1
First recorded in 1960–65

Words Nearby heat island

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How to use heat island in a sentence

British Dictionary definitions for heat-island

heat-island

noun
  1. meteorol the mass of air over a large city, characteristically having a slightly higher average temperature than that of the surrounding air

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