It is amusing to see so many venture capitalists suddenly become Marxists. You want your definition. Marx obliges:

"Contrary to idealism, which regards the world as the embodiment of an "absolute idea," a "universal spirit," "consciousness," Marx's philosophical materialism holds that the world is by its very nature material, that the multifold phenomena of the world constitute different forms of matter in motion, that interconnection and interdependence of phenomena as established by the dialectical method, are a law of the development of moving matter, and that the world develops in accordance with the laws of movement of matter and stands in no need of a "universal spirit."

Now go and implement other teachings of Marx, you dialectical venture capitalists!