Definition: An alkaline metallic element, atomic no. 19, atomic wt. 39.0983, occurring abundantly in nature but always in combination; its salts are used medicinally. For organic potassium salts not listed below, see the name of the anion.
[Mod. L., fr. Eng. potash (fr. pot + ashes) + -ium]
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Examples: glitazone, GI cocktail, etc.