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state of matter

American  
[stayt-uhv mat-er] / ˈsteɪt əv ˈmæt ər /

noun

states of matter plural
  1. Physical Chemistry. any of the phases, including solid, liquid, gas, plasma, and others, in which a substance can occur.


state of matter Scientific  
/ stāt /
  1. One of the four principal conditions in which matter exists—solid, liquid, gas, and plasma.

  2. See also phase phase transition


Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

These motionless atoms have a major effect on how a liquid turns into a solid, including the creation of an unusual state of matter known as a corralled supercooled liquid.

From Science Daily • Dec. 11, 2025

The goal, Quaise CEO Carlos Araque says, is to tap rocks that are so hot that when water contacts them, it becomes a fourth state of matter.

From The Wall Street Journal • Oct. 23, 2025

It relies on heating and pressurising water to such a high degree that it enters a new state of matter: a so-called supercritical state.

From BBC • Aug. 18, 2025

This new state of matter called the Majorana zero mode is made up of quasiparticles, which act as their own particle and antiparticle.

From Salon • Mar. 17, 2025

The normal, predictable state of matter throughout the universe is randomness, a relaxed sort of equilibrium, with atoms and their particles scattered around in an amorphous muddle.

From "The Lives of a Cell" by Lewis Thomas

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