delineation

US /dɪˌlɪn.iˈeɪ.ʃən/
UK /dɪˌlɪn.iˈeɪ.ʃən/
1.

sự phân định

the action of describing or marking the edge of something:

:
•
He tried to make a clear delineation between his job and his private activities.
:
delineate