Episteme
"Episteme" is a philosophical term derived from the Ancient Greek word ἐπιστήμη "epistēmē", which can refer to knowledge, science or understanding, and which comes from the verb , meaning "to know, to understand, or to be acquainted with".
Epistemic community
As discussed in Peter M. Haas's definitive text, an epistemic community is made up of a diverse range of academic and professional experts, who are allied on the basis of four unifying characteristics:Thus, when viewed as an epistemic community, the overall enterprise of the expert members emerges as the product of a combination of shared beliefs and more subtle conformity pressures, rather than a direct drive for concurrence (Michael J. Mazarr). Epistemic communities also have a "normative component" meaning the end goal is always for the betterment of society, rather than self gain of the community itself (Peter M. Haas).