CUL meaning in Academic & Science ?

Columbia University Libraries is the library system of Columbia University and one of the largest academic library systems in North America. With 14.5 million volumes and over 160,000 journals and serials, as well as extensive electronic resources, manuscripts, rare books, microforms, maps, and graphic and audio-visual materials, it is the fifth-largest academic library in the United States and the largest academic library in the State of New York. Additionally, the affiliated Barnard Library, Gottesman Libraries, and Jewish Theological Seminary Library together hold over one million volumes, which combined would make the Columbia University Libraries the third-largest academic library, and the second-largest private library in the United States.

The services and collections are organized into 18 libraries and various academic technology centers, including affiliates. The organization employs more than 500 professional and support staff and is located on the university's Morningside Heights campus in New York City. Additionally, Columbia is part of the Research Collections and Preservation Consortium (ReCAP) along with the Harvard Library, Princeton University Library, and New York Public Library.