from The American Heritage® Dictionary of the English Language, 5th Edition.

  • intransitive verb To remove from association; separate.
  • intransitive verb Chemistry To cause to undergo dissociation.
  • intransitive verb To cease associating; part.
  • intransitive verb Biology To mutate or change morphologically, often reversibly.
  • intransitive verb Chemistry To undergo dissociation.

from The Century Dictionary.

  • To sever the association or connection of; dissever; disunite; separate.
  • Specifically
  • In chem., to separate the elements of; decompose by dissociation.
  • To undergo dissociation; of an electrolyte in solution, to separate into ions some possessing positive and some negative electric charges, and capable of conveying an electric current by their motion through the solution with these charges.

from the GNU version of the Collaborative International Dictionary of English.

  • transitive verb To separate from fellowship or union; to disunite; to disjoin.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • verb transitive To make unrelated; to sever a connection; to separate.
  • verb intransitive To part; to stop associating.
  • verb chemistry, transitive To separate compounds into simpler component parts, usually by applying heat or through electrolysis.
  • verb chemistry, intransitive To undergo dissociation.
  • verb psychology, intransitive To undergo dissociation.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • verb to undergo a reversible or temporary breakdown of a molecule into simpler molecules or atoms
  • verb regard as unconnected
  • verb part; cease or break association with


from The American Heritage® Dictionary of the English Language, 4th Edition

[Latin dissociāre, dissociāt- : dis-, dis- + sociāre, to unite (from socius, companion; see sekw- in Indo-European roots).]


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