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  1. Solid - Wikipedia

    Solid-state physics is the study of rigid matter, or solids, through methods such as solid-state chemistry, quantum mechanics, crystallography, electromagnetism, and metallurgy.

  2. SOLID Definition & Meaning - Merriam-Webster

    The meaning of SOLID is being without an internal cavity. How to use solid in a sentence.

  3. What Is a Solid? Definition and Examples in Science

    Oct 19, 2020 · Because its particles are packed close together, a solid is rigid, doesn’t flow, and isn’t easily compressed. A solid is defined as a state of matter with a definite shape and …

  4. Solid | Definition & Facts | Britannica

    Nov 7, 2025 · Solid, one of the three basic states of matter, the others being liquid and gas. A solid forms from liquid or gas because the energy of atoms decreases when the atoms take up …

  5. SOLID definition in American English | Collins English Dictionary

    A solid is a substance that stays the same shape whether it is in a container or not. Solids turn to liquids at certain temperatures.

  6. Solid - definition of solid by The Free Dictionary

    Without a break or opening; completely or continuously: The theater was booked solid for a month.

  7. SOLID | definition in the Cambridge Learner’s Dictionary

    SOLID meaning: 1. hard and firm without holes or spaces, and not liquid or gas: 2. strong and not easily broken…. Learn more.

  8. Solid - Definition, Meaning & Synonyms | Vocabulary.com

    At first glance, solid appears to be a simple word, but it really offers shades of meaning. A solid friend is dependable. If you give a solid performance, it was very good, though not quite great. …

  9. Solid: Definition, Properties, Types, and Examples

    A solid is one of the fundamental states of matter, along with liquid and gas. It comprises particles such as atoms, ions, or molecules, packed closely together and held in fixed positions by …

  10. solid - WordReference.com Dictionary of English

    having the interior completely filled up: a piece of solid rock. Mathematics having the three dimensions of length, breadth, and thickness: A cube is a solid figure. (of the parts that …