What is "assr"

n. (context historical Soviet Union English) (initialism of Autonomous Soviet Socialist Republic English)

ASSR may refer to:

• Autonomous Soviet Socialist Republics of the Soviet Union
• Armenian Soviet Socialist Republic, now Armenia (generally abbreviated ArmSSR)
• Azerbaijan Soviet Socialist Republic, now Azerbaijan (generally abbreviated AzSSR)

• Auditory steady-state response, a steady-state evoked potential