This is the 14259th most frequent Spanish word.
universitarias
"Universitarias" refers to things or people related to universities, specifically female university students or aspects pertaining to higher education.
In this sentence, 'universitarias' is used as an adjective describing 'las instalaciones', meaning they belong to or are related to a university.
Las instalaciones universitarias están muy bien equipadas.
The university facilities are very well equipped.
Here, 'universitarias' functions as an adjective modifying 'las actividades', indicating these activities are related to the university.
Las actividades universitarias de este semestre han sido muy interesantes.
The university activities of this semester have been very interesting.
In this sentence, 'universitarias' describes 'las bibliotecas', meaning they are related to or associated with universities.