The Collaborative International Dictionary of English v.0.48:

Determination \De*ter`mi*na"tion\, n. [L. determinatio boundary,
   end: cf. F. d['e]termination.]
   1. The act of determining, or the state of being determined.
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   2. Bringing to an end; termination; limit.
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            A speedy determination of that war.   --Ludlow.
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   3. Direction or tendency to a certain end; impulsion.
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            Remissness can by no means consist with a constant
            determination of the will . . . to the greatest
            apparent good.                        --Locke.
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   4. The quality of mind which reaches definite conclusions;
      decision of character; resoluteness.
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            He only is a well-made man who has a good
            determination.                        --Emerson.
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   5. The state of decision; a judicial decision, or ending of
      controversy.
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   6. That which is determined upon; result of deliberation;
      purpose; conclusion formed; fixed resolution.
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            So bloodthirsty a determination to obtain
            convictions.                          --Hallam.
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   7. (Med.) A flow, rush, or tendency to a particular part; as,
      a determination of blood to the head.
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   8. (Physical Sciences) The act, process, or result of any
      accurate measurement, as of length, volume, weight,
      intensity, etc.; as, the determination of the ohm or of
      the wave length of light; the determination of the salt in
      sea water, or the oxygen in the air.
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   9. (Logic)
      (a) The act of defining a concept or notion by giving its
          essential constituents.
      (b) The addition of a differentia to a concept or notion,
          thus limiting its extent; -- the opposite of
          generalization.
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   10. (Nat. Hist.) The act of determining the relations of an
       object, as regards genus and species; the referring of
       minerals, plants, or animals, to the species to which
       they belong; classification; as, I am indebted to a
       friend for the determination of most of these shells.

   Syn: Decision; conclusion; judgment; purpose; resolution;
        resolve; firmness. See Decision.
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WordNet (r) 3.0 (2006):

determination
    n 1: the act of determining the properties of something, usually
         by research or calculation; "the determination of molecular
         structures" [syn: determination, finding]
    2: the quality of being determined to do or achieve something;
       firmness of purpose; "his determination showed in his every
       movement"; "he is a man of purpose" [syn: determination,
       purpose]
    3: a position or opinion or judgment reached after
       consideration; "a decision unfavorable to the opposition";
       "his conclusion took the evidence into account"; "satisfied
       with the panel's determination" [syn: decision,
       determination, conclusion]
    4: deciding or controlling something's outcome or nature; "the
       determination of grammatical inflections"
    5: the act of making up your mind about something; "the burden
       of decision was his"; "he drew his conclusions quickly" [syn:
       decision, determination, conclusion]