The Collaborative International Dictionary of English v.0.48:

Satisfaction \Sat`is*fac"tion\, n. [OE. satisfaccioun, F.
   satisfaction, fr. L. satisfactio, fr. satisfacere to satisfy.
   See Satisfy.]
   1. The act of satisfying, or the state of being satisfied;
      gratification of desire; contentment in possession and
      enjoyment; repose of mind resulting from compliance with
      its desires or demands.
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            The mind having a power to suspend the execution and
            satisfaction of any of its desires.   --Locke.
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   2. Settlement of a claim, due, or demand; payment;
      indemnification; adequate compensation.
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            We shall make full satisfaction.      --Shak.
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   3. That which satisfies or gratifies; atonement.
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            Die he, or justice must; unless for him
            Some other, able, and as willing, pay
            The rigid satisfaction, death for death. --Milton.
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   Syn: Contentment; content; gratification; pleasure;
        recompense; compensation; amends; remuneration;
        indemnification; atonement.
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WordNet (r) 3.0 (2006):

satisfaction
    n 1: the contentment one feels when one has fulfilled a desire,
         need, or expectation; "the chef tasted the sauce with great
         satisfaction" [ant: dissatisfaction]
    2: state of being gratified or satisfied; "dull repetitious work
       gives no gratification"; "to my immense gratification he
       arrived on time" [syn: gratification, satisfaction]
    3: compensation for a wrong; "we were unable to get satisfaction
       from the local store" [syn: atonement, expiation,
       satisfaction]
    4: (law) the payment of a debt or fulfillment of an obligation;
       "the full and final satisfaction of the claim"
    5: act of fulfilling a desire or need or appetite; "the
       satisfaction of their demand for better services"