lambda point


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Related to lambda point: triple point

lambda point

[′lam·də ‚pȯint]
(cryogenics)
The temperature (2.1780 K), at atmospheric pressure, at which the transformation between the liquids helium I and helium II takes place; a special case of the thermodynamics definition.
(thermodynamics)
A temperature at which the specific heat of a substance has a sharply peaked maximum, observed in many second-order transitions.