Source : Webster's Revised Unabridged Dictionary (1913)

Reader \Read"er\, n. [AS. r[=ae]dere.]
   1. One who reads. Specifically:
      (a) One whose distinctive office is to read prayers in a
          church.
      (b) (University of Oxford, Eng.) One who reads lectures on
          scientific subjects. --Lyell.
      (c) A proof reader.
      (d) One who reads manuscripts offered for publication and
          advises regarding their merit.

   2. One who reads much; one who is studious.

   3. A book containing a selection of extracts for exercises in
      reading; an elementary book for practice in a language; a
      reading book.

Source : WordNet®

reader
     n 1: a person who enjoys reading
     2: someone who contracts to receive and pay for a certain
        number of issues of a publication [syn: {subscriber}]
     3: a person who can read; a literate person
     4: someone who reads manuscripts and judges their suitability
        for publication [syn: {reviewer}, {referee}]
     5: someone who reads proof in order to find errors and mark
        corrections [syn: {proofreader}]
     6: someone who reads the lessons in a church service; someone
        ordained in a minor order of the Roman Catholic Church
        [syn: {lector}]
     7: a public lecturer at certain universities [syn: {lector}, {lecturer}]
     8: one of a series of texts for students learning to read