Skip to main content
isothermal

isothermal

1 7.9
Happening at a constant temperature
  • adjective
  • /ˌaɪsəˈθɜrməl/
  • Specialized
translation icon : isotérmico
  • For improved cycle efficiencies at the microscale, it appears to be possible to combine the compression and expansion processes with heat transfer, therefore approximating isothermal compression and expansion.
  • isothermal amplification
  • loop-mediated isothermal

Examples

  • If the atmosphere cannot absorb or emit infrared radiation, it would become isothermal, and all convection would cease.

  • If you take our current solar input, such a planet would have surface temperatures like the moon, and an isothermal atmosphere (only a tiny lapse rate) of approximately the moon's average temperature.

    Blog text (18)
  • And for isothermal processes, this is just a constant.

  • The atmosphere will not become isothermal.

    Blog text (18)
  • I hate to argue against authority, but an isothermal atmosphere is unstable and will not remain that way.

    Blog text (18)
  • If the atmosphere cannot absorb/emit IR, it would become isothermal, and all convection would cease.

    Blog text (18)
  • The flasks were then introduced into an isothermal water bath at 35°C under static conditions.

    Academic text (2008)
  • If the atmosphere is transparent to radiation, then there is no convection; it must become isothermal via conduction and cannot alter the radiating surface temperature at equilibrium.

    Blog text (18)
  • The flasks were then introduced into an isothermal water bath at 35°C under static conditions.

  • Your cylinder of air would go isothermal when it reaches a uniform temperature throughout.

Synonyms

isothermic
vsisothermal
  • Specialized
8.3

Having the same temperature throughout

describes a process that takes place at a constant temperature

How Constant

constant
  • Specialized
37 4.2
isothermal
  • Specialized
1 7.9
steady
304 2.0
variable
67 3.6

Surface Forms

isothermal positive

Morphology

isothermal = thermal (semi-transparent) = iso + thermal

The adjective is formed by prefixing 'iso-' to 'thermal' in a regular scientific pattern, but 'iso-' is a technical combining form that may not be known to an average B1 learner.

Etymology

The word isothermal comes from Greek parts iso-, meaning 'equal' or 'same', and thermal, meaning 'heat', a root you also see in thermometer. Think of isothermal as 'same heat', meaning a process where the temperature stays the same, so isothermal means happening at a constant temperature.