The Collaborative International Dictionary of English v.0.48:

Study \Stud"y\, v. i. [imp. & p. p. Studied; p. pr. & vb. n.
   Studying.] [OE. studien, OF. estudier, F. ['e]tudier. See
   Study, n.]
   1. To fix the mind closely upon a subject; to dwell upon
      anything in thought; to muse; to ponder. --Chaucer.
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            I found a moral first, and then studied for a fable.
                                                  --Swift.
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   2. To apply the mind to books or learning. --Shak.
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   3. To endeavor diligently; to be zealous. --1 Thes. iv. 11.
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WordNet (r) 3.0 (2006):

studying
    n 1: reading carefully with intent to remember [syn: perusal,
         perusing, poring over, studying]