Definition of Materialism 

The short definition we use is this one from Christiananswers.net:

“Many modern scientists are materialists. That is, they believe physical matter is the only ultimate reality. They suppose that everything in the cosmos, including life, can be explained in terms of interacting matter. Materialists do not accept the existence of spiritual or supernatural forces.”  For more information, see http://www.icr.org/pubs/imp/imp-094.htm