SOLID

In Physics, the term so'id is applied to that condition of matter in which the attractive forces of the molecules are greater than the repulsive, and the molecules con the sequently cohere with greater or le force. The other states of matter are the fluid, in which the attractive and in repulsive forces are balanced; and the gaseous, in which the repulsive prevail. full Solid. In Geometry, a magnitude which has three dimensions;length, breadth, and thickne . The boundaries of solids are surfaces. Regular solids are those which are See terminated by regular and equal planes. They are five in number, viz. the tetraedron, the hexaedron, the octaedron, and the dodecaedron, and the icosaedron. See Platonic Bodies. its SOLID ANGLE, in Geometry, is an angle made by the See meeting of more than two plane angles which are not in the same plane in one point. of SOLH) [s. 1152]