The Collaborative International Dictionary of English v.0.48:

Exhibition \Ex`hi*bi"tion\, n. [L. exhibitio a delivering: cf.
   F. exhibition.]
   1. The act of exhibiting for inspection, or of holding forth
      to view; manifestation; display.
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   2. That which is exhibited, held forth, or displayed; also,
      any public show; a display of works of art, or of feats of
      skill, or of oratorical or dramatic ability; as, an
      exhibition of animals; an exhibition of pictures, statues,
      etc.; an industrial exhibition.
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   3. Sustenance; maintenance; allowance, esp. for meat and
      drink; pension. Specifically: (Eng. Univ.) Private
      benefaction for the maintenance of scholars.
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            What maintenance he from his friends receives,
            Like exhibition thou shalt have from me. --Shak.
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            I have given more exhibitions to scholars, in my
            days, than to the priests.            --Tyndale.
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   4. (Med.) The act of administering a remedy.
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WordNet (r) 3.0 (2006):

exhibition
    n 1: the act of exhibiting; "a remarkable exhibition of
         musicianship"
    2: a collection of things (goods or works of art etc.) for
       public display [syn: exhibition, exposition, expo]