From Longman Business Dictionaryappraiserap‧prais‧er /əˈpreɪzə-ər/ noun [countable]1American EnglishPROPERTY someone whose job is to judge the condition and value of something, especially propertySYNVALUERIf the two sides cannot agree, the price will be determined by an independent appraiser.2HUMAN RESOURCES a manager who is responsible for carrying out a PERFORMANCE APPRAISAL