Approximately; about; commonly abbreviated ca.; -- used especially before dates and numerical measures; as, he was born circa 1650; ca. 50 feet high.

Represents the approximate period of time in which an item was made.

About. For example, circa 1725 means approximately at that date.

Latin, literally meaning about; used to describe various dates that are uncertain; often abbreviated or ca.

The Center for Intructional and Research Computing Activities. CIRCA operates several large VAX computers for classroom use. CIRCA also operates the Faculty Support Center and negotiates site licenses with vendors for instructional and research software.

a network of researchers within the University of

a social and educational group that meets monthly to discuss preservation issues and sponsors special events to promote the Center

Center for Instructional and Research Computing Activities