NUL meaning in Academic & Science ?

Answer: What is Northwestern University Library mean?

Northwestern University Libraries is the principal library system for the Evanston and Chicago campuses of Northwestern University. The library holds 7.9 million items [1], including 228,505 maps, 107,446 print journals and 173,089 electronic journals, making it the 11th largest library at a private university. The building was designed in brutalist style by Walter Netsch of Skidmore, Owings & Merrill. Construction started in 1966 and the library opened in 1970. University Library succeeded Deering Library as the main library on campus and is connected to it. Along with the other institutions in the Committee on Institutional Cooperation, University Library joined the Google Book Search project on June 6, 2007.

reference

Full Form	Category
Northwestern University Library	Academic & Science
National University of Lesotho	Academic & Science
Núcleo Universitario del Litoral	Academic & Science
National and University Library of Slovenia	Academic & Science
N?N?leo Universitario del Litoral	Academic & Science
Null	Computing
Named User License	General
National Urban League	Governmental
Non-GSE (Ground Support Equipment) Utilization List	Governmental
Nulato Airport, Nulato, Alaska USA	Regional
Northern Utah League	Sports