Definition of vapor pressure in English:

vapor pressure

noun

Chemistry
  • The pressure of a vapor in contact with its liquid or solid form.

    • ‘For a given external pressure, there is a temperature at which the vapor pressure of the liquid is equal to the external pressure.’
    • ‘Since the boiling point of a substance is the temperature at which its vapor pressure is equal to the atmospheric pressure, a substance whose boiling point is lower than another's is said to be more volatile.’
    • ‘At the temperature where the vapor pressure of the liquid is equal to the atmospheric pressure, the liquid is said to be at its normal boiling point.’
    • ‘This is the temperature at which the vapor pressure of the liquid is the same as that of the atmosphere.’
    • ‘If some of the vapor is removed by pumping it away then more of the liquid will evaporate to take its place and maintain the vapor pressure.’

Pronunciation:

vapor pressure

/ˈvāpər ˈpreSHər/