Ge·sta·po 
(gə-stäpō, -shtä-)
(gə-stäpō, -shtä-)n.
1. The German internal security police as organized under the Nazi regime, known for its terrorist methods directed against those suspected of treason or questionable loyalty.
2. gestapo pl. ge·sta·pos A police organization that employs terroristic methods to control a populace.
adj.
1. Of, relating to, or characteristic of the German security police organized under the Nazi regime.
2. gestapo Of, relating to, or characteristic of terroristic police methods or operations: gestapo tactics.
[German Ge(heime) Sta(ats)po(lizei), secret state police : geheim, secret + Staat, state + Polizei, police.]