crit·ic 
(krĭtĭk)
(krĭtĭk)n.
1. A person who forms and expresses judgments of the merits, faults, value, or truth of a matter.
2. A person who analyzes, evaluates, and reports on creative works, especially as a profession: a film critic; a food critic.
3. A person who tends to make harsh or carping judgments; a faultfinder.
[Latin criticus, from Greek kritikos, able to discern, from kritēs, judge, from krīnein, to separate, judge; see krei- in the Appendix of Indo-European roots.]