D defs.my
Entry 3 senses Webster, 1913

Evacuation

/ĭv-ăkˌ-yəw-āsh'-ən/ · E·vac·u·a·tion · IPA /ɪˌvækjuˈeɪʃən/
01 n. The act of emptying, clearing of the contents, or discharging.
  1. 1.
    The act of emptying, clearing of the contents, or discharging.(Mil.)
  2. 2.
    That which is evacuated or discharged; especially, a discharge by stool or other natural means.
  3. 3.
    Abolition; nullification.[Obs.]
Phrases & compounds
Evacuation day — the anniversary of the day on which the British army evacuated the city of New York, November 25, 1783.