CEFR B1

weather glass

noun phrase

Meaning

A device used to measure atmospheric pressure, often used to forecast the weather. It typically consists of a sealed glass tube filled with a liquid, such as mercury or water, that rises or falls in response to changes in air pressure.

Examples

  • The weather glass on the ship's wall indicated a low pressure system was moving in.
  • She checked the weather glass every morning to plan her sailing trip.