water vapour

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water vapour

A pot of boiling water releases water vapour into the air.

Definition
  1. Noun:
    • Water in a gaseous state: "water vapour" refers to water that has evaporated and exists as a gas in the air, typically at temperatures below its boiling point. It is an invisible component of the Earth's atmosphere.
Usage
  • "Water vapour" is an uncountable noun. It is the scientific and technical term for gaseous water in the air. It is a key component in discussions of weather, climate, and physical processes like evaporation and condensation.
  • Example:
Examples
  • Noun:
    • Clouds form when water vapour in the atmosphere cools and condenses into tiny droplets.
    • The greenhouse effect is influenced by gases like carbon dioxide and water vapour.
    • Warm air can hold more water vapour than cold air.
Advanced Usage
  • "Water vapour pressure": the pressure exerted by water vapour in a mixture of gases.
    • The meteorologist calculated the water vapour pressure to predict fog formation.
  • "Water vapour transmission": a measure of how easily water vapour can pass through a material.
    • This fabric has a high water vapour transmission rate, making it breathable.
Variants and Related Words
  • Vapor / Vapour (US/UK spelling) (n): the general term for a substance in its gaseous state, often diffused in the air.
    • The chemist studied the properties of the vapour.
  • Water vapor (US spelling): The American English spelling of "water vapour".
  • Steam (n): Often confused with water vapour. Steam is technically water vapour at or above boiling temperature and is often visible as a mist of water droplets.
    • Steam rose from the boiling kettle.
Synonyms
  • Moisture: A more general term for water or other liquid in small quantities, often as vapour or condensed on a surface.
  • Humidity: Specifically refers to the amount of water vapour present in the air.
Related Phrases
  • Water vapour content: The specific amount of water vapour in a given volume of air.
    • The instrument measures the water vapour content of the atmosphere.
  • Saturated with water vapour: Describes air that holds the maximum amount of water vapour possible at a given temperature.
    • The air near the lake was saturated with water vapour.
water vapour

A pot of boiling water releases water vapour into the air.

Noun
  1. water in a vaporous form diffused in the atmosphere but below boiling temperature

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