Spinozism

Webster's Dictionary

(n.) The form of Pantheism taught by Benedict Spinoza, that there is but one substance, or infinite essence, in the universe, of which the so-called material and spiritual beings and phenomena are only modes, and that one this one substance is God.

The Nuttall Encyclopedia

The pantheism of Spinoza ( q. v .), which regards God as the one self-subsistent substance, and both matter and thought attributes of Him.