dis ‧ so ‧ ci ‧ ate /dɪˈsəʊʃieɪt, -sieɪt $ -ˈsoʊ-/ BrE AmE verb [transitive]
[ Date: 1500-1600 ; Language: Latin ; Origin: dissociare , from sociare 'to join' ]
1 . to do or say something to show that you do not agree with the views or actions of someone with whom you had a connection
dissociate yourself from something
I wish to dissociate myself from Mr Irvine’s remarks.
2 . technical to regard two things or people as separate and not connected to each other OPP associate
—dissociation /dɪˌsəʊʃiˈeɪʃ ə n -siˈeɪ- $ -ˌsoʊ-/ noun [uncountable]