- (chemistry) A fundamental state of matter that retains its size and shape without need of a container. Solids that are sufficiently heated may sublimate into a gas or melt into a liquid.
- (geometry) A three-dimensional object.
Etymology: From solide (as an adjective), this from solidus, solÄdus, "like the soil", from solum, "ground".
- In the state of being a solid.
- Large, massive.
- Extremely filling (a solid meal.)
- Lacking holes or hollows (solid gold, solid chocolate.)
- Strong, unyielding (solid foundations.)
- Lacking errors or inconsistencies that would render a theory or concept doubtful.
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Full Definition of solid