Source : Webster's Revised Unabridged Dictionary (1913)

Extreme \Ex*treme"\, n.
   1. The utmost point or verge; that part which terminates a
      body; extremity.

   2. Utmost limit or degree that is supposable or tolerable;
      hence, furthest degree; any undue departure from the mean;
      -- often in the plural: things at an extreme distance from
      each other, the most widely different states, etc.; as,
      extremes of heat and cold, of virtue and vice; extremes
      meet.

            His parsimony went to the extreme of meanness.
                                                  --Bancroft.

   3. An extreme state or condition; hence, calamity, danger,
      distress, etc. ``Resolute in most extremes.'' --Shak.

   4. (Logic) Either of the extreme terms of a syllogism, the
      middle term being interposed between them.

   5. (Math.) The first or the last term of a proportion or
      series.

   {In the extreme} as much as possible. ``The position of the
      Port was difficult in the extreme.'' --J. P. Peters.