Hylotheism (from Gk.
hyle, 'matter' and theos, 'God') is the belief that matter and God are the same, so in other words, defining God as matter.
[1][2] The American Lutheran Church–Missouri Synod defines hylotheism is "Theory equating matter with God or merging one into the other" which it states as "Synonym for pantheism* and materialism.*".
[3]