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to dissociate

to dissociate

1 7.4
To split a molecule into atoms or ions
  • verb
  • /dɪˈsoʊʃieɪt/
  • Specialized
translation icon : disociarse
  • But the carbonic acid is not stable and it dissociates pretty quickly into free protons.
  • molecules dissociate
  • dissociated cells
  • dissociated neurons

Examples

  • The blastula is dissociated to yield single cells (D) that will be used as nuclear donors.

    Academic text (1999)
  • The frequency was set so that any molecule that might have formed would dissociate into m_f = -9/2 and m_f = -7/2 atoms.

    Academic text (2003)
  • So it'll be easy for it to dissociate to give H plus, right?

  • You have a ground state and that dissociates the ground state atoms.

  • So it's possible to dissociate a hydrogen on Palladium.

  • I'm taking an acid and I'm dissociating it in water.

  • A previously dissociated cell (D) is drawn into a micropipette and inserted into the enucleated ovum (H).

    Academic text (1999)
  • For biochemical analysis, hippocampi were subdissected, snap frozen in liquid nitrogen, and dissociated using a CryoGrinder.

    Academic text (2018)
  • For primary glial cultures, brains from P1-P4 pups were dissociated into single-cell suspensions with a papain dissociation system.

    Academic text (2018)
  • When certain materials dissolve in water, they will dissociate into positively and negatively charged ions.

Synonyms

to separate
vsto dissociate
297 1.9

To break into parts or pieces

is specific to reversible molecular splitting rather than general division
to break up
vsto dissociate
66 2.7

Separate something into smaller pieces

focuses on molecular level and reversibility, not physical fragmentation
to come apart
vsto dissociate
44 3.1

To break into pieces or fall into separate parts

describes temporary molecular separation rather than physical fragmentation
to break down
vsto dissociate
  • Specialized
36 3.7

To make something separate into smaller parts by a chemical process

is reversible splitting at molecular or ionic level rather than general permanent change
to break apart
vsto dissociate
26 3.0

To separate into pieces, for example a machine or a group

applies to reversible molecular splitting not to literal breaking
to decompose
vsto dissociate
  • Specialized
9 5.5

To break a substance into smaller chemical parts using heat or chemicals

is a temporary molecular separation rather than full chemical breakdown

Antonyms

638 2.7

To mix two or more things into one

55 6.4

To combine ideas or materials to make something new

How Dissociated

to ionize
  • Specialized
15 7.2
to dissociate
  • Specialized
1 7.4
to decompose
  • Specialized
37 4.4
to remain
1.0

Surface Forms

dissociate infinitive
dissociated past participle
dissociating present participle
dissociates third person singular

Morphology

dissociate = associate (semi-transparent) = dis + soci + ate

The general idea of separation from 'associate' is clear, but the precise chemical sense of splitting into ions or smaller units is specialized.

Etymology

Dissociate comes from the Latin parts dis- 'apart' and soci- (as in associate) meaning 'join'. In chemistry this idea is simple: a molecule that dissociates stops being joined and breaks 'apart' into simpler parts.