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  1. Clay - Wikipedia

    Clay has a high content of clay minerals that give it its plasticity. Clay minerals are hydrous aluminium phyllosilicate minerals, composed of aluminium and silicon ions bonded into tiny, …

  2. Clay | Definition, Formation, Properties, Uses, & Facts | Britannica

    Dec 26, 2025 · Clay, soil particles the diameters of which are less than 0.005 millimeter; also a rock that is composed essentially of clay particles. Rock in this sense includes soils, ceramic …

  3. What is clay? - Science Learning Hub

    Clay is a soft, loose, earthy material containing particles with a grain size of less than 4 micrometres (μm). It forms as a result of the weathering and erosion of rocks containing the …

  4. What is clay's definition, structure, types, uses, and facts

    What is Clay? Clay is a naturally occurring material composed primarily of fine-grained minerals, which develop through the weathering and alteration of rocks. It has the unique ability to …

  5. What Is Clay? Complete Guide to Definition, Properties, and Uses

    Dec 10, 2025 · A comprehensive guide explaining what clay is, its key properties, formation process, and practical uses in construction, ceramics, and other industries.

  6. CLAY Definition & Meaning - Merriam-Webster

    The meaning of CLAY is an earthy material that is plastic when moist but hard when fired, that is composed mainly of fine particles of hydrous aluminum silicates and other minerals, and that …

  7. CLAY | English meaning - Cambridge Dictionary

    CLAY definition: 1. thick, heavy soil that is soft when wet, and hard when dry or baked, used for making bricks and….

  8. CLAY Definition & Meaning | Dictionary.com

    A stiff, sticky sedimentary material that is soft and pliable when wet and consists mainly of various silicates of aluminum. Clay particles are smaller than silt, having a diameter less than 0.0039 …

  9. What Is Clay Made Of? Its Composition and Structure

    1 day ago · Detailed look at clay’s fundamental composition and the unique layered structure that dictates its physical properties, formation, and classification.

  10. Clay - New World Encyclopedia

    Clay is a term used to describe a group of fine-grained, silicate minerals known as aluminum phyllosilicates, containing variable amounts of chemically associated water. Clay is plastic …