Wordnet 3.0
NOUN (1)
1. 
 a British university that is open to people without formal academic qualifications and where teaching is by correspondence or broadcasting or summer school; 
WordNet (r) 3.0 (2006):
Open University
    n 1: a British university that is open to people without formal
         academic qualifications and where teaching is by
         correspondence or broadcasting or summer school
The Free On-line Dictionary of Computing (30 December 2018):
Open University
    (OU) The UK distance-learning organisation,
   established in 1969.  It teaches degree-level courses in many
   subjects via BBC radio and television broadcasts and summer
   schools.
   (http://hcrl.open.ac.uk/ou/ouhome.html).
   (1999-07-13)