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1. Part; cease or break association with
   "She dissociated herself from the organization when she found out the identity of the president";
   - disassociate, divorce, disunite, disjoint
    
2. Regard as unconnected
   "you must dissociate these two events!";
   - decouple
    
3. (chemistry) to undergo a reversible or temporary breakdown of a molecule into simpler molecules or atoms
   "acids dissociate to give hydrogen ions"

Derived forms: dissociates, dissociating, dissociated

Type of: break, break down, break up, decompose, differentiate, distinguish, part, secern [rare], secernate, separate, severalise [Brit], severalize, split, split up, tell, tell apart

Antonym: link up

Encyclopedia: Dissociate