ə̇n.ˈterəˌgā]d.ə(r), ]tə- sometimes ˌintəˈrägə]\ noun
( -s )
Etymology: Late Latin, from Latin interrogatus (past participle of interrogare to interrogate) + -or — more at interrogate
1. : one that interrogates : questioner ; specifically : one who interrogates prisoners of war
born a German and … served as interrogator in the American Army — Virgilia Peterson
2. : a radio transmitter and receiver combined for sending out a signal that triggers a transponder and for receiving and displaying the reply