Hermeticism
[ hur-met-uh-siz-uh m ]
/ hɜrˈmɛt əˌsɪz əm /
noun (sometimes lowercase)
the body of ideas set forth in Hermetic writings.
adherence to the ideas expressed in Hermetic writings.
the occult sciences, especially alchemy.
Also
Her·me·tism
[hur-mi-tiz-uh m] /ˈhɜr mɪˌtɪz əm/.