Amorphous solid

#) Amorphous solid: In condensed matter physics and materials science, an amorphous (from the Greek a, without, morphé, shape, form) or non-crystalline solid is a solid that lacks the long-range order characteristic of a crystal.

>> In some older books, the term has been used synonymously with glass. Nowadays, “amorphous solid” is considered to be the overarching concept, and glass the more special case: A glass is an amorphous solid that exhibits a glass transition.

>> Polymers are often amorphous. Other types of amorphous solids include gels, thin films, and nanostructured materials.

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