Meaning & use
cation
An ion with a positive electric charge, formed when an atom loses one or more electrons.
See it in a sentence
Sodium forms a cation when it loses an electron to become a positively charged ion.
In the battery, cations move toward the negative electrode during discharge.
A note on using this word
Cation is pronounced "CAT-eye-on"; remembering that a "cat"ion is positive can help distinguish it from the negatively charged anion.
Words with a similar meaning
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Words with an opposite meaning
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