[ dih-soh-see-ey-shuh n, -shee-ey- ]
/ dɪˌsoʊ siˈeɪ ʃən, -ʃiˈeɪ- /
an act or instance of dissociating.
the state of being dissociated; disjunction; separation: the dissociation of church and state.
- the reversible resolution or decomposition of a complex substance into simpler constituents caused by variation in physical conditions, as when water gradually decomposes into hydrogen and oxygen under great heat in such a way that when the temperature is lowered the liberated elements recombine.
- electrolytic dissociation.
Psychiatry. the splitting off of a group of mental processes from the main body of consciousness, as in amnesia or certain forms of hysteria.
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Related formsself-dis·so·ci·a·tion, noun
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
British Dictionary definitions for self-dissociation (1 of 2)
chem the splitting of the molecules of certain highly polar liquids, such as water and liquid ammonia, into ions
British Dictionary definitions for self-dissociation (2 of 2)
/ (dɪˌsəʊsɪˈeɪʃən, -ʃɪ-) /
the act of dissociating or the state of being dissociated
- a reversible chemical change of the molecules of a single compound into two or more other molecules, atoms, ions, or radicals
- any decomposition of the molecules of a single compound into two or more other compounds, atoms, ions, or radicals
separation of molecules or atoms that occurs when a liquid or solid changes to a gas
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
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
Word Origin and History for self-dissociation
1610s, from French dissociation, from Latin dissociationem (nominative dissociatio), noun of action from past participle stem of dissociare (see dissociate).
Online Etymology Dictionary, © 2010 Douglas Harper
Medicine definitions for self-dissociation
[ 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.
Related formsdis•so′ci•ate′ v.dis•so′ci•a′tive adj.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
Science definitions for self-dissociation
[ dĭ-sō′sē-ā′shən ]
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.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.