triple point

noun Physics.

the particular temperature and pressure at which the solid, liquid, and gaseous phases of a given substance are all at equilibrium with one another.

Origin of triple point

First recorded in 1870–75

Words nearby triple point

triple figure, triple fugue, triple integral, triple jump, triple play, triple point, triple response, triple rhyme, triple rhythm, triple sec, triple superphosphate

Example sentences from the Web for triple point

  • Its shape is so regularly three-cornered, that Triangle or Triple-point (Trinacria) was one of its ancient names.

    A Jar of Honey from Mount Hybla |Leigh Hunt

British Dictionary definitions for triple point

triple point

noun

chem the temperature and pressure at which the three phases of a substance are in equilibrium. The triple point of water, 273.16 K at a pressure of 611.2 Pa, is the basis of the definition of the kelvin

Medical definitions for triple point

triple point

n.

The temperature and pressure at which three different phases, such as gaseous, liquid, and solid phases, of a particular substance can coexist in equilibrium.

Scientific definitions for triple point

triple point

The temperature and pressure at which a substance can exist in equilibrium in the liquid, solid, and gaseous states. The triple point of pure water is at 0.01°C (273.16K, 32.01°F) and 4.58 mm (611.2Pa) of mercury and is used to calibrate thermometers. Compare critical point.

Cultural definitions for triple point

triple point

In physics, the temperature at which all three phases of matter (solid, liquid, and gas) for a given substance can coexist.

notes for triple point

The triple point for water is a little above the freezing point, and is used to define temperature scales.