percenter UK /pəˈsɛn.tə/US /pɚˈsɛn.tɚ/noun 2forms 1phrases 1 noun2 •[in compounds] A member of a group that forms a specified percentage of a population. •(slang) An agent. formspercenters Phrases with percenter one-percenterA member of the top one percent of a population by wealth, ability, etc. (same as the ninety-ninth percentile), especially in a society with high wealth inequality.