A person, especially a philosopher, who studies theory of knowledge.(noun)
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Use "epistemologist" in a sentence
"At some point Mike Skinner – the most important British act of the last decade – went from lager-soaked teller of nightclub tale to a sweet-eyed, hungover-looking Nassim Nicholas Tassib-like pop epistemologist."
"Kant is really two philosophers: (1) the epistemologist of The Critique of"
"The epistemologist, Gregory Bateson, once characterized the inadequacies of Logic as a language for describing natural systems by using simple logic to describe a thermostat."