Solid

(solid.) [From L. solidus, firm.] (Phys.) A body the parts of which are so combined together as not to give way or di ociate from each other upon the slightest impre ion or penetration; thus distinguished from liquid, or fluid.-(Anat., dc.) The bones, flesh, and ve els of animal bodies take the name of solids, in distinction from the blood, chyle, and other fluid organisms.-(Geom.) The third species of magnitude, or that which has 3 dimensions, viz., length, breadth, and thickne or depth. S. are customarily diviaed into regular and irregular. The first are those terminated by uniform and equal planes, and are5 in number, viz., the tetrahedron, cube or hexahedron, octahedron, dodecahedron, and icosahedron. The irregular S. are almost infinite, comprehending all such as do not come under the definition of regular S.; as the sphere, cone, cylinder, prism, parallelogram, parallelopiped, .(Camb.) A measure containing six volumes, the units of which severally form a cube of fixed line or magnitude; thus, a solid foot contains 1,728 inches. [s. 837]