Glossary search

online public access catalog

Broader Term: 
Abbreviation Of: 

n. (OPAC, abbr.) ~ A computerized database that allows patrons to search descriptions of materials in a repository's holdings.


'OPAC' connotes a system that conforms to bibliographic standards such as Anglo-American Cataloguing Rules and MARC format. OPACs often include many other library functions, such as acquisition and circulation.

A Glossary of Archival and Records Terminology