the act of detaching or being detached; the state of not being influenced by personal opinions

disconnection

the artificial process of removing waste products from the blood, e.g. when the kidneys are not working

being apart; break-up

the breaking up or ending (of a marriage, partnership, formal meeting etc)

separation, rupture

(an act of) separating or being separated or separate; an instance, period, of not being together

being apart; break-up