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Webster 1913 Edition
Solidness
Sol′id-ness
,Noun.
1.
State or quality of being solid; firmness; compactness; solidity, as of material bodies.
2.
Soundness; strength; truth; validity, as of arguments, reasons, principles, and the like.
Webster 1828 Edition
Solidness
SOL'IDNESS
, n.1.
The quality of being firm, dense or compact; firmness; compactness; solidity; as of material bodies.2.
Soundness; strength; truth; validity; as of arguments, reasons, principles, &c.