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  1. SOLID Definition & Meaning - Merriam-Webster

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

  2. 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.

  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 volume.

  4. Solid | Definition & Facts | Britannica

    Apr 16, 2026 · 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 …

  5. 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.

  6. SOLID | English meaning - Cambridge Dictionary

    SOLID definition: 1. hard or firm, keeping a clear shape: 2. completely hard or firm all through an object, or…. Learn more.

  7. 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.

  8. Solid - definition of solid by The Free Dictionary

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

  9. solid - definition and meaning - Wordnik

    Having three dimensions; having length, breadth, and thickness; cubic: as, a solid foot contains 1,728 solid inches. Sound; not weak; strong.

  10. Solid - New World Encyclopedia

    On the level of atoms and molecules, a solid has these properties : The atoms or molecules that comprise the solid are packed closely together. These constituent elements have fixed positions in …