Category: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.)

Defn: the solid contents of a body; volume; amount of inclosed space.

Syn. -- firmness; solidness; hardness; density; compactness; strength; Soundness; validity; certainty.