|dissociation (dɪˌsəʊsɪˈeɪʃən, -ʃɪ-)|
|1.||the act of dissociating or the state of being dissociated|
|a. a reversible chemical change of the molecules of a single compound into two or more other molecules, atoms, ions, or radicals|
|b. any decomposition of the molecules of a single compound into two or more other compounds, atoms, ions, or radicals|
|3.||separation of molecules or atoms that occurs when a liquid or solid changes to a gas|
|4.||psychiatry the separation of a group of mental processes or ideas from the rest of the personality, so that they lead an independent existence, as in cases of multiple personality|
dissociation dis·so·ci·a·tion (dĭ-sō'sē-ā'shən, -shē-)
The chemical process by which the action of a solvent or a change in physical condition, as in pressure or temperature, causes a molecule to split into simpler groups of atoms, single atoms, or ions.
The separation of an electrolyte into ions of opposite charge.
Separation of a group of related psychological activities into autonomously functioning units, as in the generation of multiple personalities.
|dissociation (dĭ-sō'sē-ā'shən) Pronunciation Key
The separation of a substance into two or more simpler substances, or of a molecule into atoms or ions, by the action of heat or a chemical process. Dissociation is usually reversible.