Definicija: Any facility devoted to the collection, maintenance and distribution of materials or data compiled to convey knowledge on some subject, often with trained staff persons available to answer questions.

Definicija: A central institution or agency for the collection, maintenance, and distribution of materials or data compiled to convey knowledge on some subject.

Definicija: Center, ki zbira, hrani in deli zbrano gradivo ali podatke. Namen je podajati informacije o določeni tematiki. V takem centru ponavadi dela usposobljeno osebje, ki tudi odgovarja na vprašanja.