SOLIDIFY
So*lid"i*fy, v. i.

Defn: To become solid; to harden.

SOLIDISM
Sol"id*ism, n. (Med.)

Defn: The doctrine that refers all diseases to morbid changes of the solid parts of the body. It rests on the view that the solids alone are endowed with vital properties, and can receive the impression of agents tending to produce disease.

SOLIDIST
Sol"id*ist, n. (Med.)

Defn: An advocate of, or believer in, solidism. Dunglison.

SOLIDITY
So*lid"i*ty, n. Etym: [L. soliditas: cf. F. solidité.]

1. The state or quality of being solid; density; consistency, — opposed to fluidity; compactness; fullness of matter, — opposed to openness or hollowness; strength; soundness, — opposed to weakness or instability; the primary quality or affection of matter by which its particles exclude or resist all others; hardness; massiveness. That which hinders the approach of two bodies when they are moving one toward another, I call solidity. Locke.

2. Moral firmness; soundness; strength; validity; truth; certainty; - - as opposed to weakness or fallaciousness; as, the solidity of arguments or reasoning; the solidity of principles, triuths, or opinions.

3. (Geom.)