Cā'ti-on, n.
n. [Gr. κατὰ, downward, and ἰών, going, p. of ἰέναι, to go.] (Chem.) An electro-positive substance, which in electro-decomposition is evolved at the cathode. Faraday.
n. [Gr. κατὰ, downward, and ἰών, going, p. of ἰέναι, to go.] (Chem.) An electro-positive substance, which in electro-decomposition is evolved at the cathode. Faraday.