A positively-charged ion. All cations are metallic, with the exception of ammonium.
Cat"i*on (?), n. [Gr. downward + going, p. pr. of to go.] Chem.
An electro-positive substance, which in electro-decomposition is evolved at the cathode; -- opposed to anion.
© Webster 1913.
Log in or registerto write something here or to contact authors.
Need help? email@example.com