Solid-state physics is the study of rigid matter, or solids, through methods such as solid-state chemistry, quantum mechanics, crystallography, electromagnetism, and metallurgy.

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

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

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.

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

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.

Physics having relative firmness, coherence of particles, or persistence of form, as matter that is not liquid or gaseous: solid particles suspended in a liquid.

Completely filled up; compact; without cavities, pores, or interstices; not hollow: as, a solid ball, as distinguished from a hollow one; solid soda-water, not frothy.

Solid definition: Of definite shape and volume; not liquid or gaseous.

Unlike a gas or liquid, a solid has a fixed shape, and unlike a gas, a solid has a fixed volume. In most solids (with exceptions such as glass), the molecules are arranged in crystal lattices of various sizes.