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 (sĕ-mā′) or Sem·i·pa·la·tinsk (sĕm′ē-pə-lä′tĭnsk)
A city of northeast Kazakhstan on the Irtysh River southeast of Omsk, Russia. Founded as a fortress in 1718, it is a port and processing center.
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Defense Department assisted Kazakhstan in sealing tunnels at the Semipalitinsk former nuclear test site, to secure nuclear wastes.