solidity Meaning, Definition & Usage

  1. noun the consistency of a solid
    solidness.
  2. noun state of having the interior filled with matter
  3. noun the quality of being solid and reliable financially or factually or morally
    solidness.
    • the solidity of the evidence worked in his favor
    • the solidness of her faith gave her enduring hope

WordNet

So*lid"i*ty noun
Etymology
L. soliditas: cf. F. solidité.
Definitions
  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.) The solid contents of a body; volume; amount of inclosed space. Syn. -- Firmness; solidness; hardness; density; compactness; strength; soundness; validity; certainty.

Webster 1913