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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 & Facts | Britannica

    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 a relatively …

  3. SOLID Definition & Meaning - Merriam-Webster

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

  4. 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 volume.

  5. Solid Starts - How to introduce any food to babies

    A team of pediatric feeding experts and doctors to help you start solids, prevent + reverse picky eating. Free First Foods® database.

  6. SOLID | English meaning - Cambridge Dictionary

    Two-dimensional polygons and threedimensional polyhedra (curved or linear) are widely recognized examples of solids. The singularities are known as disclinations and are the …

  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 Principles with Real Life Examples - GeeksforGeeks

    Aug 23, 2025 · The SOLID principles are five essential guidelines that enhance software design, making code more maintainable and scalable. The SOLID principles help in enhancing loose …

  9. solid - Wiktionary, the free dictionary

    Jan 6, 2026 · solid (comparative more solid or solider, superlative most solid or solidest) (of an object or substance) That can be picked up or held, having a texture, and usually firm. Unlike a …

  10. 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.