Hypertext Webster Gateway: "arcanum"
From Webster's Revised Unabridged Dictionary (1913) (web1913)
Arcanum \Ar*ca"num\, n.; pl. {Arcana}. [L., fr. arcanus closed,
secret, fr. arca chest, box, fr. arcere to inclose. See
{Ark}.]
1. A secret; a mystery; -- generally used in the plural.
Inquiries into the arcana of the Godhead.
--Warburton.
2. (Med.) A secret remedy; an elixir. --Dunglison.
From WordNet (r) 1.7 (wn)
arcanum
n : information known only to a special group; "the secret of
Cajun cooking" [syn: {secret}]
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