Someone who holds that the only source of knowledge is experience. For Wilber, "narrow science" holds that empiricism means "experience originating in the five senses or their extensions," while "broad science" holds that something can be empirically real if it can be directly experienced by individuals subjectively and then validated by consensus in a qualified "community of the adequate."

One of the two main schools of philosophical thought throughout history. Empiricists believed that pure reasoning alone was not sufficient to gain knowledge of the world, but experience was also required. Empiricists started with Aristotle, and include Locke, Berkeley and Hume.

a philosopher who subscribes to empiricism

refers to researchers who rely on an experimental approach to the study of crime and criminality.

An empiric.