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solid

Primary Information
Secondary Information

Definition

Solids are materials that have a definite shape and volume. They do not flow or change shape easily. Some examples of solids are rocks, metals, and wood.

Solids are made up of tiny particles that are packed together tightly. The particles in a solid cannot move around very much, which is why solids have a definite shape and volume.

Solids can be classified into three types: crystalline solids, amorphous solids, and gels. Crystalline solids have a regular repeating pattern of particles. Amorphous solids do not have a regular repeating pattern of particles. Gels are a combination of a solid and a liquid.

How can the word be used?

The ice is solid.

solid

Different forms of the word

Adjective:

  • having a definite shape and volume.
  • not liquid or gaseous.
  • firm and not easily broken.

Noun:

  • a solid object.

Etymology

The word "solid" comes from the Latin word "solidus", which means "firm" or "compact".

The first recorded use of the word "solid" in English was in the 13th century.

The word "solid" is derived from the Latin word "solidus", which is itself derived from the Proto-Indo-European word *sōl, which also means "firm" or "compact".

Question

What materials can be described as solid?