Definition of "reviewer"

reviewer

noun
plural reviewers
1. A person who writes reviews for a newspaper or other publication; a critic.
  Quotations
  AN HISTORICAL GEOGRAPHY OF THE RAILWAYS OF THE BRITISH ISLES. By Ernest F. Carter. Cassell. 63s. [...] Such a disappointing work is embarrassing to the reviewer and unworthy of the great House of Cassell.
  1960 January, “New reading on railways”, in Trains Illustrated, page 26
2. An inspector.
  Quotations
  The cost of initial site evaluation visits will vary with the cost of travel from the USDA reviewer's duty station to the applicant's place of business.
  2007, Mary Choate, Organic Lies