English Reference

Word

dissociation

Phoneticsdis·so·ci·a·tion

/dɪˌsoʊsiˈeɪʃən/

Definitions

01psychological detachment

C1 · Medicine

n. a mental process where a person feels disconnected from their thoughts, feelings, or surroundings, often to cope with trauma.

n. a psychological defence mechanism involving a disruption in the usually integrated functions of consciousness, memory, identity, or perception.

“After the accident, he experienced a sense of dissociation and felt like he was watching his life from far away.”

“Clinical dissociation often manifests as a protective response to overwhelming trauma, allowing the individual to distance the conscious mind from unbearable emotional distress.”

Technical

Usage

Often used with the preposition 'from'.

Teaching tip

In modern casual conversation, people sometimes use this to mean 'zoning out', but in a C1 context, it usually refers to a serious psychological state.

Synonyms

detachmentdisconnectionseparation

02chemical breakdown

C2 · Science

n. the process where a chemical compound breaks down into smaller parts, like atoms or ions.

n. the reversible decomposition of a chemical compound into simpler constituents, such as molecules, atoms, or ions.

“The dissociation of salt in water allows the liquid to conduct electricity.”

“The degree of electrolytic dissociation depends heavily on the concentration of the solute and the temperature of the solvent.”

Technical

Usage

Uncountable when referring to the general process; countable when referring to specific instances.

Teaching tip

This is a highly specialized sense; students only need it for academic or scientific writing.

03general separation

C1

n. the act of separating two things that were previously connected.

n. the act of severing the association between two entities or the state of being disconnected.

“There was a complete dissociation between the company's public image and its actual business practices.”

“The author argues for a total dissociation of art from political propaganda, suggesting that creative works should be judged on aesthetic merit alone.”

Academic · Formal

Usage

Usually followed by the preposition 'between' or 'of'.

Synonyms

severancedisunionsplit

Real-World Examples

“In a near-perennial state of dissociation, she imagines herself transformed by trauma into something less than fully human.”
The Guardian · 6 Aug 2026

Etymology

Borrowed from French dissociation, from Latin dissociātiō(n).

Etymology adapted from Wiktionary, available under CC BY-SA 4.0.

Word family

dissociationNoundissociativeAdjective

Domains

ChemistryPsychology

This entry

Level
C1 · Advanced
Frequency
Occasional
Updated

Scan code

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English Reference