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exchange force

noun
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Definition of exchange force

: a force between two elementary particles (such as a neutron and a proton) arising from the continuous interchange between them of other particles (such as pions)

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“Exchange force.” The Merriam-Webster.com Dictionary, Merriam-Webster Inc., https://www.merriam-webster.com/dictionary/exchange%20force. Accessed 19 January 2020.

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