PSU meaning in Academic & Science ?

The Pennsylvania State University (Penn State or PSU) is a public state-related land-grant research university with campuses and facilities throughout Pennsylvania. Founded in 1855 as the Farmers' High School of Pennsylvania, Penn State became the state's only land-grant university in 1863. Today, Penn State is a major research university which conducts teaching, research, and public service. Its instructional mission includes undergraduate, graduate, professional and continuing education offered through resident instruction and online delivery. The University Park campus has been labeled one of the "Public Ivies," a publicly funded university considered as providing a quality of education comparable to those of the Ivy League, and is ranked among the world's top universities by academic publications.

In addition to its land-grant designation, it also participates in the sea-grant, space-grant, and sun-grant research consortia; it is one of only four such universities (along with Cornell University, Oregon State University, and University of Hawaiʻi at Mānoa). Its University Park campus, which is the largest and serves as the administrative hub, lies within the Borough of State College and College Township. It has two law schools: Penn State Law, on the school's University Park campus, and Dickinson Law, in Carlisle. The College of Medicine is in Hershey. Penn State is one university that is geographically distributed throughout Pennsylvania. There are 19 commonwealth campuses and 5 special mission campuses located across the state.

Annual enrollment at the University Park campus totals more than 46,800 graduate and undergraduate students, making it one of the largest universities in the United States. It has the world's largest dues-paying alumni association. The university's total enrollment in 2015–16 was approximately 97,500 across its 24 campuses and online through its World Campus. The university offers more than 160 majors among all its campuses. The university's research expenditures totaled $836 million during the 2016 fiscal year.

Annually, the university hosts the Penn State IFC/Panhellenic Dance Marathon (THON), which is the world's largest student-run philanthropy. This event is held at the Bryce Jordan Center on the University Park campus. In 2014, THON raised a program record of $13.3 million. The university's athletics teams compete in Division I of the NCAA and are collectively known as the Penn State Nittany Lions, competing in the Big Ten Conference for most sports. Penn State students, alumni, faculty, and coaches have received a total of 54 Olympic medals.