| caduceus | A staff with two oppositely twined serpents and surmounted by two wings; emblem of the U.S. Army Medical Corps. For veterinary medicine the double serpent was changed in 1972 to its present form with a single serpent. See: staff of Aesculapius. Origin: L. The staff of Mercury; G. Keryx herald, the staff of Hermes (05 Mar 2000) |
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