Princeton's WordNet

1. nuclear reactor, reactor(noun)

   (physics) any of several kinds of apparatus that maintain and control a nuclear reaction for the production of energy or artificial elements

Wiktionary

1. nuclear reactor(Noun)

   Any device in which a controlled chain reaction is maintained for the purpose of creating heat (for power generation) or for creating neutrons and other fission products for experimental, medical or other purposes.

Dictionary of Military and Associated Terms

1. nuclear reactor

   A facility in which fissile material is used in a self-supporting chain reaction (nuclear fission) to produce heat and/or radiation for both practical application and research and development.

• kernreaktorAfrikaans
• مُفاعِل نَوَويArabic
• ядрен реакторBulgarian
• reator nuclearPortuguese (BR)
• jaderný reaktorCzech
• der KernreaktorGerman
• atomreaktorDanish
• πυρηνικός αντιδραστήραςGreek
• reactor nuclearSpanish
• tuumareaktorEstonian
• رکتور هسته ایFarsi
• ydinreaktoriFinnish
• réacteur nucléaireFrench
• כּוּר גַרעִינִיHebrew
• नाभिकीय रिएक्टरHindi
• nuklearni reaktorCroatian
• atomreaktorHungarian
• reaktor nuklirIndonesian
• kjarnakljúfur/-ofnIcelandic
• reattore nucleareItalian
• 原子炉Japanese
• 원자로Korean
• branduolinis reaktoriusLithuanian
• atomreaktorsLatvian
• reactor nuklearMalay
• kernreactorDutch
• atomreaktorNorwegian
• reaktor jądrowyPolish
• رکتور هسته ایPersian
• د هسته يى انرژى اندازه كونكىPashto
• reactor nuclearPortuguese
• reactor nuclearRomanian
• атомный реакторRussian
• jadrový reaktorSlovak
• jedrskiSlovenian
• nuklearni reaktorSerbian
• atom-, kärnreaktorSwedish
• เตาปฏิกรณ์ปรมาณูThai
• atom reaktörüTurkish
• 核子反應爐Chinese (Trad.)
• ядерний реакторUkrainian
• جوہري توانائي کي پيدائش کا مرکزUrdu
• lò phản ứng hạt nhânVietnamese
• 核反应堆Chinese (Simp.)