- dissociation [di sō΄sē ā′shən, di sō΄shēā′shən]n.[L dissociatio]1. a dissociating or being dissociated; separation2. Chem. the breaking up of a compound into simpler components, as with heat or a solvent, frequently in a reversible manner so that the components may recombine3. Psychol.a) a split in the conscious process in which a group of mental activities breaks away from the main stream of consciousness and functions as a separate unit, as if belonging to another personb) the abnormal separation of related ideas, thoughts, or emotionsdissociativeadj.
English World dictionary. V. Neufeldt. 2014.