The term you're looking for is physicalism, of which materialism is one belief, the other being emergentism, which its replacement. There are a number of belie

The term you're looking for is physicalism, of which materialism is one belief, the other being emergentism, which its replacement. There are a number of beliefs that rest upon the bedrock of materialism that persist today despite materialism being outdated. The prime example is reductionism, the idea that anything can be understood by looking at its parts - this is not true, and while this idea is as outdated as the materialist view, it unfortunately persists. Many other ideals like quantification rest on reductionism and are also becoming outmoded in academia but not in the public perception of what are considered rational ideas.