Dictionary

triple point

noun

Definition of TRIPLE POINT

:  the condition of temperature and pressure under which the gaseous, liquid, and solid phases of a substance can exist in equilibrium

First Known Use of TRIPLE POINT

1872

triple point

noun    (Medical Dictionary)

Medical Definition of TRIPLE POINT

:  the condition of temperature and pressure under which the gaseous, liquid, and solid phases of a substance (as water) can exist in equilibrium

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