phase transition

American  

[fayz-tran-zish-uhn] / ˈfeɪz trænˌzɪʃ ən /

noun

plural

phase transitions

1. Physical Chemistry. the change from one phase of a substance to another, such as from solid to liquid.

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phase transition Scientific  

1. A change in a feature of a physical system that results in a discrete transition of that system to another state. For example, the melting of ice is a phase transition of water from a solid phase to a liquid phase. Phase transitions often involve the absorption or emission of energy from the system; ice, at 0 ° Celsius, must absorb a considerable amount of heat energy to become water.

2. See also state of matter thermodynamics

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Example Sentences

These included metals such as copper, noble gases under extreme pressure such as argon in crystalline state, and the complex solid-solid phase transition of tin.

From Science Daily • Mar. 15, 2026

"For the first time, we've seen a superfluid undergo a phase transition to become what appears to be a supersolid," said Dean.

From Science Daily • Feb. 5, 2026

Thermodynamic measurements revealed a clear phase transition, showing that the system entered a magnetically ordered state.

From Science Daily • Jan. 21, 2026

Non-equilibrium phase transition: a change in the state of a system that occurs when it is not in thermal equilibrium, often driven by external forces or energy input.

From Science Daily • Jun. 3, 2024

In this there is no phase transition or supercooling.

From "A Brief History of Time: And Other Essays" by Stephen Hawking