Materialism is a form of philosophical monism which holds that matter is the fundamental substance in nature, and that all things, including mental states and consciousness, are results of material interactions of material things. According to philosophical materialism, mind and consciousness are caused by physical processes, such as the neurochemistry of the human brain and nervous system, without which they cannot exist. Materialism directly contrasts with idealism, according to which consciousness is the fundamental substance of nature.

भौतिकवाद दार्शनिक एकत्ववाद का एक प्रकार हैं, जिसका यह मत है कि प्रकृति में पदार्थ ही मूल द्रव्य है, और साथ ही, सभी दृग्विषय, जिस में मानसिक दृग्विषय और चेतना भी शामिल हैं, भौतिक परस्पर संक्रिया के परिणाम हैं।