solid state

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solid state

A scientist holds a solid state cube of ice in a laboratory.

Definition
  1. Noun:
    • The physical state of matter characterized by rigidity and a fixed shape and volume: "solid state" refers to one of the fundamental states of matter in which the constituent particles (atoms, molecules, or ions) are closely packed together. The particles vibrate in fixed positions but do not have enough energy to move past one another, resulting in a substance that maintains its own shape and does not flow like a liquid or gas.
Usage
  • The term "solid state" is used to describe the physical condition of a substance. It is often contrasted with "liquid state" and "gaseous state."
  • It is commonly used in scientific, technical, and engineering contexts, particularly in physics and materials science.
  • It can be used attributively (like an adjective) to describe devices or components that operate using the electrical properties of solid materials, though this is a distinct, related usage.
Examples
  • Noun:
    • At room temperature, iron is in a solid state.
    • Water changes from a liquid to a solid state when it freezes.
    • The experiment studied the transition of the material into a solid state.
Advanced Usage
  • "Solid-state" (attributive adjective): This is a common compound form used to describe electronic components, circuits, or devices that are built entirely from solid materials (like semiconductors) and in which electrons flow through solid matter, without the need for vacuum tubes, moving parts, or gases.
    • Example: A solid-state drive (SSD) uses flash memory and has no moving mechanical parts, unlike a traditional hard disk drive.
Variants and Related Words
  • Solid (adj/n): The general term for matter in the solid state. As a noun, it refers to a substance in this state (e.g., "Ice is a solid.").
  • Solidity (n): The quality or state of being solid; firmness and density.
  • Solidify (v): To make or become solid.
Synonyms
  • Solid phase
  • Solid condition
Related Concepts (Not Synonyms)
  • Crystalline solid: A solid with a highly ordered, repeating atomic structure.
  • Amorphous solid: A solid that lacks a long-range ordered structure (e.g., glass).
  • Liquid state: The fluid state of matter.
  • Gaseous state: The state of matter with no fixed shape or volume.
solid state

A scientist holds a solid state cube of ice in a laboratory.

Noun
  1. the state in which a substance has no tendency to flow under moderate stress; resists forces (such as compression) that tend to deform it; and retains a definite size and shape

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