The Collaborative International Dictionary of English v.0.48:

Divination \Div`i*na"tion\, n. [L. divinatio, fr. divinare,
   divinatum, to foresee, foretell, fr. divinus: cf. F.
   divination. See Divine.]
   1. The act of divining; a foreseeing or foretelling of future
      events; the pretended art discovering secret or future by
      preternatural means.
      [1913 Webster]

            There shall not be found among you any one that . .
            . useth divination, or an observer of times, or an
            enchanter.                            --Deut. xviii.
                                                  10.
      [1913 Webster]

   Note: Among the ancient heathen philosophers natural
         divination was supposed to be effected by a divine
         afflatus; artificial divination by certain rites,
         omens, or appearances, as the flight of birds, entrails
         of animals, etc.
         [1913 Webster]

   2. An indication of what is future or secret; augury omen;
      conjectural presage; prediction.
      [1913 Webster]

            Birds which do give a happy divination of things to
            come.                                 --Sir T.
                                                  North.
      [1913 Webster]

WordNet (r) 3.0 (2006):

divination
    n 1: successful conjecture by unusual insight or good luck
    2: a prediction uttered under divine inspiration [syn:
       prophecy, divination]
    3: the art or gift of prophecy (or the pretense of prophecy) by
       supernatural means [syn: divination, foretelling,
       soothsaying, fortune telling]

The Devil's Dictionary (1881-1906):

DIVINATION, n.  The art of nosing out the occult.  Divination is of as
many kinds as there are fruit-bearing varieties of the flowering dunce
and the early fool.