Source : Webster's Revised Unabridged Dictionary (1913)

Perusal \Pe*rus"al\, n. [From {Peruse}.]
   1. The act of carefully viewing or examining. [R.] --Tatler.

   2. The act of reading, especially of reading through or with
      care. --Woodward.

Source : WordNet®

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