the act of coming into the possession
of a right, title, office, etc.: accession to the throne.
an increase by something added: an accession of territory.
something added: a list of accessions to the college library.
Law. addition to property by growth or improvement.
consent; agreement; approval: accession to a demand.
International Law. formal acceptance of a treaty, international convention, or other agreement between states.
the act of coming near; approach.
an attack or onset, as of a disease.
verb (used with object)
to make a record of (a book, painting, etc.) in the order of acquisition.
to acquire (a book, painting, etc.), especially for a permanent collection.
Origin: 1580–90; Related forms
< Latin accessiōn-
(stem of accessiō
) an approach, addition. See access