Full Definition of POTASSIUM. : a silver-white soft light low-melting monovalent metallic element of the alkali metal group that occurs abundantly in nature especially combined in minerals â see element table. See potassium defined for English-language learners. See potassium defined for kids.ADVERTISEMENT. a silver-white soft light low-melting monovalent metallic element of the alkali metal group that occurs abundantly in nature especially combined in minerals â see element table. See potassium defined for English-language learners. See potassium defined for kids. ADVERTISEMENT.
Corydon, Indiana. Corydon is a town in Harrison Township, Harrison County, Indiana, United States. It was founded in 1808. Corydon was the second capital of the Indiana Territory, from May 1, 1813, until December 11, 1816. When Indiana became a US state in 1816, Corydon became Indiana's first state capital.
Marion County is a county located in the U.S. state of Indiana. Census 2010 recorded a population of 903,393, making it the largest county in the state and 55th most populated county in the country, greater than the population of six states. The county seat is Indianapolis, the state capital and largest city. Marion County is consolidated with Indianapolis through an arrangement known as Unigov. Marion County is included in the Indianapolis-Carmel-Anderson, IN Metropolitan Statistical Area.