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Webster 1913 Edition

Adj.

[L.

lapideus

, fr.

lapis

stone.]

Of the nature of stone.

[Obs.]

Ray.

Adj.

[L. lapideus.] Stony; of the nature of stone; as lapideous matter. [Little used.]

lapideous ‎(comparative more lapideous, superlative most lapideous)

(obsolete) Of the nature of stone.
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