Definition of deaccession
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
