1. A reference to the act of separating or the state of being separated.
2. In psychology and psychiatry, a perceived detachment of the mind from the emotional state or even from the body.

Dissociation is characterized by a sense of the world as a dreamlike or unreal place and may be accompanied by poor memory of the specific events, which in severe form is known as dissociative amnesia.

1. The ionization of a compound in a solution.
2. The ionization of a solute in a solution
3. The breaking up of a neutral ionic compound into two or more oppositely charged ions, usually by the effect of dissolution or separation into component parts.
3. The separation of the molecule of an electrolyte into ions or its constituent atoms.

A phenomenon whereby ions in ionic compounds in an aqueous solution are freed from their mutual attractions and distribute themselves uniformly throughout the solvent.

Continued electrical rhythmicity of the heart in the absence of effective mechanical function.

It might be caused by the uncoupling of ventricular muscle contraction from electrical activity or it might be a result of cardiac damage with respiratory failure and cessation of cardiac venous return.