I just posted this in a different posting about the same thing, but, in case someone doesn't go there, here it is:
Here is something from the National Institute of Health: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC1525127/
I found the most helpful part of it is if you scroll down to the Detachment and Compartmentalization section, which talks in detail about their relation to dissociation.
I encourage you to read both articles, if like me, you are confused by the mere word.
Here is something from the National Institute of Health: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC1525127/
I found the most helpful part of it is if you scroll down to the Detachment and Compartmentalization section, which talks in detail about their relation to dissociation.
I encourage you to read both articles, if like me, you are confused by the mere word.