Evacuation \E*vac`u*a"tion\, n. [L. evacuatio: cf. F.
['e]vacuation.]
1. The act of emptying, clearing of the contents, or
discharging. Specifically:
(a) (Mil.) Withdrawal of troops from a town, fortress,
etc.
(b) (Med.) Voidance of any matter by the natural passages
of the body or by an artificial opening; defecation;
also, a diminution of the fluids of an animal body by
cathartics, venesection, or other means.
2. That which is evacuated or discharged; especially, a
discharge by stool or other natural means. --Quincy.
3. Abolition; nullification. [Obs.]
--Hooker.
Evacuation day, the anniversary of the day on which the
British army evacuated the city of New York, November 25,
1783.
Source: Webster's Revised Unabridged Dictionary (1913)
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