I. ikˈseshən, ak-, ək- noun
( -s )
Etymology: Middle French, from Latin accession-, accessio, from accessus + -ion-, -io -ion
1.
a. : something added as to a collection or formal group : acquisition
new accessions in the paintings department of the museum
b. : a specimen under consideration or study : examination sample
all accessions of volunteer tomatoes were susceptible
2.
a. : the act of becoming joined (as in a confederacy or union) : adherence
French accession to the European Defense Community
b. : the act by which one nation becomes party to engagements already in force between other powers
c. : the mode of acquiring property by which the owner of a corporeal substance (as land or cattle) becomes the owner of an addition by growth, increase, or labor
3. : increase by something added : augmentation from without
the greatest accession of positive knowledge has come in our own time — W.R.Inge
4. : the act of assenting or agreeing
accession to the determination made by Congress — Samuel Williams
5.
a. : a coming near or to : approach , arrival : admission
marriage represents full accession to adult life — H.M.Parshley
b. : the act of attaining or coming to high office or a position of honor or power
the accession of a new queen
6. : a sudden fit or spell (as of feeling) : outburst
sharp accessions of impatience — Mary Austin
7. : a hiring or rehiring of an employee
II. transitive verb
( accessioned ; accessioned ; accessioning -sh(ə)niŋ ; accessions )
: to record in the order of acquisition listing essential data (as author, title, and publication date of a book) : enter (an accession) in a special record book, list, or file
each book in the library had been carefully accessioned
the art gallery has an efficient way of accessioning newly received paintings