The Collaborative International Dictionary of English v.0.48:

Determinate \De*ter"mi*nate\, v. t.
   To bring to an end; to determine. See Determine. [Obs.]
   [1913 Webster]

         The sly, slow hours shall not determinate
         The dateless limit of thy dear exile.    --Shak.
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The Collaborative International Dictionary of English v.0.48:

Determinate \De*ter"mi*nate\, a. [L. determinatus, p. p. of
   determinare. See Determine.]
   1. Having defined limits; not uncertain or arbitrary; fixed;
      established; definite.
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            Quantity of words and a determinate number of feet.
                                                  --Dryden.
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   2. Conclusive; decisive; positive.
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            The determinate counsel and foreknowledge of God.
                                                  --Acts ii. 23.
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   3. Determined or resolved upon. [Obs.]
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            My determinate voyage.                --Shak.
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   4. Of determined purpose; resolute. [Obs.]
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            More determinate to do than skillful how to do.
                                                  --Sir P.
                                                  Sidney.
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   Determinate inflorescence (Bot.), that in which the
      flowering commences with the terminal bud of a stem, which
      puts a limit to its growth; -- also called centrifugal
      inflorescence.

   Determinate problem (Math.), a problem which admits of a
      limited number of solutions.

   Determinate quantities, Determinate equations (Math.),
      those that are finite in the number of values or
      solutions, that is, in which the conditions of the problem
      or equation determine the number.
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WordNet (r) 3.0 (2006):

determinate
    adj 1: precisely determined or limited or defined; especially
           fixed by rule or by a specific and constant cause; "a
           determinate distance"; "a determinate number";
           "determinate variations in animals" [ant:
           indeterminate, undetermined]
    2: not continuing to grow indefinitely at the apex; "determinate
       growth" [ant: indeterminate]
    3: supplying or being a final or conclusive settlement; "a
       definitive verdict"; "a determinate answer to the problem"
       [syn: definitive, determinate]

Moby Thesaurus II by Grady Ward, 1.0:

137 Moby Thesaurus words for "determinate":
   absolute, admitting no exception, all-out, apodictic, ascertained,
   assured, attested, bound, categorical, certain, certified,
   circumscribed, circumscript, clear, clear and distinct,
   clear as day, complete, conclusive, concrete, constant, decided,
   decisive, defined, definite, definitive, delimited, demarcated,
   detailed, determined, diagnose, different, distinct, distinguish,
   distinguished, downright, encircled, entire, esoteric, especial,
   established, exceptional, explicit, express, extraordinary, final,
   finger, fixed, flat, flat-out, global, guaranteed, hedged about,
   immovable, immutable, implicit, in the bag, inalterable,
   inappealable, indisputable, individual, ineluctable, inevitable,
   inner, intimate, invariable, limited, made sure, minute,
   nailed down, narrow, necessary, noteworthy, on ice, open-and-shut,
   out-and-out, outright, particular, peremptory, perfect,
   perfectly sure, personal, pinpoint, place, positive, precise,
   predestined, predetermined, private, proved, recognize, respective,
   restricted, round, secure, set, settled, several, singular,
   solipsistic, special, specific, spot, stated, straight,
   straight-out, sure, sure-enough, surrounded, tested, total, tried,
   true, unalterable, unambiguous, unchangeable, uncircumscribed,
   unconditional, unconditioned, undoubting, unequivocal, unhampered,
   unhesitating, univocal, unlimited, unmistakable, unmitigated,
   unmodifiable, unqualified, unquestioning, unreserved, unrestricted,
   unwaivable, utter, warranted, whole, without exception,
   without reserve



Bouvier's Law Dictionary, Revised 6th Ed (1856):

DETERMINATE. That which is ascertained; what is particularly designated; as,
if I sell you my horse Napoleon, the article sold is here determined. This
is very different from a contract by which I would have sold you a horse,
without a particular designation of any horse. 1 Bouv. Inst. n. 947, 950.