Dictionary definition · accession
noun
- a process of increasing by addition (as to a collection or group)"the art collection grew through accession"
- (civil law) the right to all of that which your property produces whether by growth or improvement
- something added to what you already have"the librarian shelved the new accessions"
- agreeing with or consenting to (often unwillingly)"accession to such demands would set a dangerous precedent"
- the right to enter
- the act of attaining or gaining access to a new office or right or position (especially the throne)"Elizabeth's accession in 1558"
verb
- make a record of additions to a collection, such as a library
Source: Open English WordNet (CC BY 4.0).