counterion

noun
coun·​ter·​ion | \ ˈkau̇n-tər-ˌī-ən How to pronounce counterion (audio) , -ˌän \

Definition of counterion

: an ion having a charge opposite to that of the substance with which it is associated

First Known Use of counterion

1940, in the meaning defined above

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The first known use of counterion was in 1940

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Cite this Entry

“Counterion.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/counterion. Accessed 27 Nov. 2020.

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