A common issue where two pieces of an object no longer connect or fit together in the way they were intended. The separation can be due to a variety of potential causes: low humidity, wear and tear, breakage due to a fall or excessive pressure. A disjoin usually requires a repair so the object is whole and structurally sound. Common examples of a disjoin include: separation of two object pieces on a frame at the corner or separation of legs, rungs, or arms on a chair.
Buck, Rebecca A. and Jean Allman Gilmore, eds. (2010). MRM5: Museum RegistrationMethods 5th Edition. Washington, DC: American Alliance of Museums.