s, -syoos, -shuh
s, -dyoo-]

caduceus ca·du·ce·us (kə-d&oomacr;'sē-əs, -shəs, -dy&oomacr;'-)
n. pl. ca·du·ce·i (-sē-ī')
A winged staff with two serpents twined around it, carried by Hermes.
An insignia modeled on Hermes' staff and used as the symbol of the medical profession.