From Longman Dictionary of Contemporary Englishagent provocateura‧gent pro‧voc‧a‧teur /ˌæʒɒn prɒvɒkəˈtɜː $ ˌɑːʒɑːn proʊvɑːkəˈtɜːr/ noun (plural agents provocateurs (same pronunciation)) [countable] PGSPYsomeone who is employed to encourage people who are working against a government to do something illegal so that they are caughtOrigin agent provocateur (1800-1900) French “provoking agent”