1. A three-dimensional area in space that is completely filled with matter, without gaps or hollow spaces; a bounded set in mathematics or physics
The solid region enclosed by the sphere has a specific volume.
A região sólida delimitada pela esfera possui um volume específico.
2. In mathematics, a three-dimensional subset of Euclidean space bounded by a surface
We calculated the integral over the solid region defined by the cylinder.
Calculamos a integral sobre a região sólida definida pelo cilindro.
3. A physically compact and dense area or body of matter
The geologist examined the solid region of rock beneath the surface.
O geólogo examinou a região sólida de rocha abaixo da superfície.