- Often arcana. a secret; mystery.
- a supposed great secret of nature that the alchemists sought to discover.
- a secret and powerful remedy.
Origin of arcanum
Examples from the Web for arcana
Kornacki, on the other hand, appears to be far more comfortable with the kind of arcana found in The Almanac of American Politics.Steve Kornacki, MSNBC’s Brainy Replacement for Chris Hayes, Just Wants to Be Useful
March 21, 2013
I took the book down and it was part of Swedenborg's 'Arcana Coelestia.'Fair Haven and Foul Strand
Would that I were in the midst of my arcana and of the spirits once more!The Three Perils of Man, Vol. 3 (of 3)
Even the wisest of men have hoped for a full knowledge of the arcana of metals.Jewel Mysteries
Among the favoured few who penetrated this arcana was Lawyer Maxwell.Gabriel Conroy
That is not the way to force an entrance into the arcana of Nature.The Hidden Masterpiece
Honore de Balzac
- either of the two divisions (the minor arcana and the major arcana) of a pack of tarot cards
- (sometimes plural) a profound secret or mystery known only to initiates
- a secret of nature sought by alchemists
Word Origin and History for arcana
"hidden things, mysteries," 1590s, a direct adoption of the Latin plural of arcanum "a secret, a mystery," from neuter of adjective arcanus "secret, hidden, private, concealed" (see arcane). Occasionally mistaken for a singular and pluralized as arcanas because arcana is far more common than arcanum.
proper singular form of arcana.