vapour

/'veipə/
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vapour

A kettle releases a steady stream of vapour into the air.

Definition
  1. Noun:
    • A substance in the gaseous state, especially one that is normally a liquid or solid at room temperature: "vapour" refers to the gaseous phase of a substance, often formed by evaporation or sublimation.
    • A visible mass of tiny particles, such as water droplets or smoke, suspended in the air: "vapour" can also describe a mist, fog, or steam that is visible to the eye.
Examples of Usage
  • Noun:
    • Water vapour is an important greenhouse gas in the Earth's atmosphere.
    • A cloud is a visible mass of water vapour and ice crystals.
    • The chemist studied the vapour pressure of the volatile liquid.
Advanced Usage
  • "Vapour trail": a visible trail of condensed water vapour or ice crystals left in the sky by an aircraft.
    • The jet left a long, white vapour trail across the blue sky.
  • "Vapour lock": a problem in a liquid-fuel system where vapour blocks the flow of fuel.
    • The old car suffered from vapour lock on hot days, causing the engine to stall.
Variants and Related Words
  • Vapor (noun): The standard American English spelling of "vapour".
  • Vaporize (verb): To convert or be converted into vapour.
    • The intense heat will vaporize the metal.
  • Vaporous (adjective): Relating to or resembling vapour; insubstantial.
    • The morning had a vaporous, misty quality.
Synonyms
  • Gas: A substance with no fixed shape or volume.
  • Steam: The hot, invisible gas formed when water boils; often used interchangeably with visible water vapour.
  • Mist: A cloud of tiny water droplets in the air, less dense than fog.
  • Fume: A gas, vapour, or smoke, especially one that is unpleasant or harmful.
Related Phrasal Verbs/Verb Phrases

(Note: "Vapour" is primarily a noun. Common verb forms are "vaporize" or "evaporate".) - To give off vapour: To emit or release vapour. - The dry ice gave off a cold, white vapour.

Related Idioms
  • To vanish/disappear into thin air/vapour: To disappear completely and mysteriously.
    • The magician made the coin vanish into thin air.
vapour

A kettle releases a steady stream of vapour into the air.

Noun
  1. the process of becoming a vapor
  2. a visible suspension in the air of particles of some substance

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