Materialist
Materialist (mȧ*tē"ri*al*ist) , noun
[Compare French matérialiste.]
1.
One who denies the existence of spiritual substances or agents, and maintains that spiritual phenomena, so called, are the result of some peculiar organization of matter. A believer in philosophical materialism.
2.
One who holds to the existence of matter, as distinguished from the idealist, who denies it. — Berkeley