n. The theory that experience is the source of knowledge.
the GNU version of the Collaborative International Dictionary of English
n. The doctrine that experience, either that of ourselves or of others, is the test or criterion of general knowledge; -- opposed to intuitionalism.
The Century Dictionary and Cyclopedia
n. The doctrine that all our knowledge has its origin in experience, and must submit to the test of experience.
Word Usage
"Specifically, what's foundationally important for Humean Empiricism is not anti-Nativism, but what we might call experientialism, the thesis that all our ideas are representations of particular sensory states."