1) Memory 2) Remembering 3) Scientific theory 
• (a.) Of or pertaining to association, or to an association. • (a.) Pertaining to the theory held by the associationists.
As·so`ci·a'tion·al adjective 1. Of or pertaining to association, or to an association. 2. Pertaining to the theory held by the associationists. 
[adj] - (psychology) of or relating to associations or associationism
adjective of or relating to associations or associationism