Russian

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Russian Wikipedia has an article on:
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Etymology

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Internationalism.

Pronunciation

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Noun

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бетатро́н (betatrónm inan (genitive бетатро́на, nominative plural бетатро́ны, genitive plural бетатро́нов, relational adjective бетатро́нный)

  1. (physics) betatron

Declension

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