The Collaborative International Dictionary of English v.0.48:

Evacuate \E*vac"u*ate\, v. t. [imp. & p. p. Evacuated; p. pr.
   & vb. n. Evacuating.] [l. evacuatus, p. p. of evacuare to
   empty, nullify; e out + vacuus empty, vacare to be empty. See
   Vacate.]
   1. To make empty; to empty out; to remove the contents of;
      as, to evacuate a vessel or dish.
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   2. Fig.: To make empty; to deprive. [R.]
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            Evacuate the Scriptures of their most important
            meaning.                              --Coleridge.
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   3. To remove; to eject; to void; to discharge, as the
      contents of a vessel, or of the bowels.
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   4. To withdraw from; to quit; to retire from; as, soldiers
      from a country, city, or fortress.
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            The Norwegians were forced to evacuate the country.
                                                  --Burke.
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   5. To make void; to nullify; to vacate; as, to evacuate a
      contract or marriage. [Obs.] --Bacon.
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