Main Entry: ca·du·ceus

Pronunciation: \kə-ˈd(y)ü-sē-əs, -shəs\

Function: noun

Inflected Form(s): plural ca·du·cei \-sē-ˌī\

: a medical insignia bearing a representation of a staff with two entwined snakes and two wings at the top:

[caduceus illustration]

a : one of the symbols of a physician—compare staff of aesculapius b : the emblem of a medical corps or a department of the armed services (as of the United States Army)