Linguistically, one might compare it to epistemology, which is derived from the Greek words episteme ("certain knowledge") and logos.
As a philosophical concept, gnosiology broadly means the theory of knowledge, which in ancient Greek philosophy was perceived as a combination of sensory perception and intellect and then made into memory (called the mnemonic system).
When considered in the context of science, gnosiology takes on a different meaning: the study of knowledge, its origin, processes, and validity.
[12] Gnosology has also been used, particularly by James Hutchison Stirling,[10] to render Johann Gottlieb Fichte's term for his own version of transcendental idealism, Wissenschaftslehre, meaning "Doctrine of Knowledge".
[14] Emilii Medtner drew from Kant's gnosology along with the Kantian theory of knowledge to respond to Carl Jung's Zofingia Lectures, particularly to criticize the way intuition was conceived as a knowledge organ that is capable of functioning with validity and independence.