so·lid·i·ty /səˈlɪdəti/
 固體性,堅硬,堅固,穩健,體積


 So·lid·i·ty n.
 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.

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 solidity
      n 1: the consistency of a solid [syn: solidness] [ant: porosity]
      2: state of having the interior filled with matter [ant: hollowness]