- The definition of criterion is the standard by which something is judged or assessed.
An example of a criterion is the set of guidelines for a thesis which is used to determine whether your thesis was good or bad.
Used by arrangement with John Wiley & Sons, Inc.
noun pl. cri·te·ri·a or cri·te·ri·ons
Origin: Greek kritērion, from kritēs, judge, from krīnein, to separate, judge; see krei- in Indo-European roots.
- cri·teˈri·al adjective