to separate (something), esp from a larger mass and usu without causing damage
to separate (something) from a parent organization or larger group for a special purpose
A ship was detached from the fleet and sent to intercept the destroyer
(often + from) to keep (oneself) emotionally detached from something
detachability /-ʹbiliti/ noun
detachable adj
detachably adv
[French détacher from Old French destachier, from de- + -tachier as in atachier to attach]