atomic pile

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English[edit]

Etymology[edit]

atomic + Italian pila, battery

Noun[edit]

atomic pile (plural atomic piles)

  1. (physics) an early nuclear reactor fuelled by uranium and moderated with graphite
    • 1948 The second atomic pile at the Government's research establishment at Harwell . . . is expected to be brought into use this summer - The Times (London) May 11 1948 pg 2 col A