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  1. Solid - Wikipedia

    Solid is a state of matter in which atoms are closely packed and are difficult to move past each other. Solids resist compression, expansion, or external forces that would alter its shape, with …

  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 · A solid is matter that has a defined shape and volume. Because its particles are packed close together, a solid is rigid, doesn’t flow, and isn’t easily compressed.

  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 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.

  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, 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 …

  8. 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.

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

    A solid, as opposed to a liquid or gas, has a size and shape to it. It doesn't flow like water or disappear into the air.

  10. SOLIDWORKS for Students: 3D CAD Software for Education | SOLIDWORKS

    SOLIDWORKS for Students As the industry standard for design and engineering, SOLIDWORKS is the perfect software platform to help you jumpstart your career.