Definition of isotherm in English:

isotherm

noun

  • 1A line on a map connecting points having the same temperature at a given time or on average over a given period.

    • ‘The Curie isotherm is a temperature surface in the Earth's subsurface connecting depths at which Curie temperatures are reached.’
    • ‘Put differently, isotherms are as important as latitudes in determining what constitutes Arctic and Subarctic regions.’
    • ‘Humboldt used lines, called isotherms, to delineate regions of equal temperatures.’
    • ‘The average temperature of an underground site reflects the yearly isotherm of the area.’
    • ‘In tropical and subtropical mountains the tree line occurs where the summer isotherms are as low as 3-6°C.’
    1. 1.1Physics
      A curve on a diagram joining points representing states or conditions of equal temperature.
      • ‘To explore the affinity distribution methods, we first studied equilibrium isotherms.’
      • ‘The corresponding surface tension isotherms in the case of high lipid concentration are presented in Fig.7.’
      • ‘Surface pressure and surface potential isotherms were directly acquired during the measurement.’
      • ‘This is consistent with the S shape of isotherms in all numerical models simulating temperature evolution in subduction zones.’
      • ‘All data points in the adsorption isotherm represent an average of three experiments.’

Origin

Mid 19th century: from French isotherme, from Greek isos equal + thermē heat.

Pronunciation:

isotherm

/ˈīsōˌTHərm//ˈīsəˌTHərm/