Pronunciation: /ˌdiːəkˈsɛʃ(ə)n/
verb
[with object]-
officially remove (an item) from a library, museum, or art gallery in order to sell it: the decision was made to deaccession the picture [no object]: museums will deaccession to buy other works
noun
[mass noun]-
the official removal of an item from a library, museum, or art gallery in order to sell it: in England deaccession has been adopted by local authorities to offset spending cuts [count noun]: the spate of spectacular deaccessions being conducted by American museums