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, in the meaning defined above

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More Definitions for triple point

triple point

noun

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