So*lid"i*ty(?), n. [L. soliditas: cf. F. solidit.] 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
fallaciousness; as, the
solidity of arguments or reasoning; the
solidity of principles, triuths, or opinions.
(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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Thu 13th December 2018