RBMK reactor /är-bē-em-kā ri-akˈtər/

A graphite-moderated, boiling water-cooled, pressure-tube reactor, unique to the former USSR

• unornamented
• unorthodox
• unorthodoxies
• unorthodoxly
• unorthodoxy
• unossified
• unostentatious
• unostentatiously
• unostentatiousness
• unovercome
• unoverthrown
• unowed
• unowned
• unoxidised
• unoxidized
• unpaced
• unpacified
• unpack
• unpacked
• unpacker
• unpackers
• unpacking
• utu
• U-tube
• U-tubes