Hypertext Webster Gateway: "lapis"
From Webster's Revised Unabridged Dictionary (1913) (web1913)
Lapis \La"pis\, n.; pl. {Lapides}. [L.]
A stone.
{Lapis calaminaris}. [NL.] (Min.) Calamine.
{Lapis infernalis}. [L.] Fused nitrate of silver; lunar
caustic.
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