• IPA: /æk.ˈsɛ.ʃən/, /əˈsɛ.ʃən/
  • (America)


  1. A coming to; the act of acceding and becoming joined
    a king's accession to a confederacy
  2. Increase by something added; that which is added; augmentation from without.
    • 1783, Edward Gibbon, The History of the Decline and Fall of the Roman Empire, London: W. Strahan and T. Cadell, Volume 1, Chapter 1, p. 5,
      The only accession which the Roman empire received, during the first century of the Christian Aera, was the province of Britain.
    • 1803, John Browne Cutting, “A Succinct History of Jamaica” in Robert Charles Dallas, The History of the Maroons, London: Longman and Rees, Volume 1, p. xli,
      […] armed vessels being provided, their crews were soon recruited by accessions from the needy or adventurous, the discontented or the bold.
  3. (legal) A mode of acquiring property, by which the owner of a corporeal substance which receives an addition by growth, or by labor, has a right to the part or thing added, or the improvement (provided the thing is not changed into a different species).
  4. (legal) The act by which one power becomes party to engagements already in force between other powers.
  5. The act of coming to or reaching a throne, an office, or dignity.
  6. (medicine) The invasion, approach, or commencement of a disease; a fit or paroxysm.
  7. Agreement.
  8. Access; admittance.
Translations Translations Translations
  • German: Vermögenszuwachs
  • Portuguese: acessão
Translations Verb

accession (accessions, present participle accessioning; past and past participle accessioned)

  1. (transitive) To make a record of (additions to a collection).

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