com·part·men·tal·ize 
(kŏm′pärt-mĕntl-īz′, kəm-pärt′-)
(kŏm′pärt-mĕntl-īz′, kəm-pärt′-)tr.v. com·part·men·tal·ized, com·part·men·tal·iz·ing, com·part·men·tal·iz·es
To separate into distinct parts, categories, or compartments: "You learn ... even the ability to compartmentalize ethics" (Ellen Goodman).
com′part·men′tal·i·zation (-ĭ-zāshən) n.