The Collaborative International Dictionary of English v.0.48:

Temperance \Tem"per*ance\, n. [L. temperantia: cf. F.
   temp['e]rance. See Temper, v. t.]
   1. Habitual moderation in regard to the indulgence of the
      natural appetites and passions; restrained or moderate
      indulgence; moderation; as, temperance in eating and
      drinking; temperance in the indulgence of joy or mirth;
      specifically, moderation, and sometimes abstinence, in
      respect to using intoxicating liquors.
      [1913 Webster]

   2. Moderation of passion; patience; calmness; sedateness.
      [R.] "A gentleman of all temperance." --Shak.
      [1913 Webster]

            He calmed his wrath with goodly temperance.
                                                  --Spenser.
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   3. State with regard to heat or cold; temperature. [Obs.]
      "Tender and delicate temperance." --Shak.
      [1913 Webster]

   Temperance society, an association formed for the purpose
      of diminishing or stopping the use of alcoholic liquors as
      a beverage.
      [1913 Webster]

WordNet (r) 3.0 (2006):

temperance
    n 1: the trait of avoiding excesses [syn: temperance,
         moderation] [ant: intemperance]
    2: abstaining from excess [syn: sobriety, temperance]
    3: the act of tempering