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nouna light soft silver-white metallic element of the alkali metal group; oxidizes rapidly in air and reacts violently with water; is abundant in nature in combined forms occurring in sea water and in carnallite and kainite and sylvite
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Definition that contains potassium
- powder a mixture of potassium nitrate, charcoal, and sulfur in a 75:15:10 ratio which is used in gunnery, time fuses, and fireworks
- davy English chemist who was a pioneer in electrochemistry and who used it to isolate elements sodium and potassium and barium and boron and calcium and magnesium and chlorine (1778-1829)
- gunpowder a mixture of potassium nitrate, charcoal, and sulfur in a 75:15:10 ratio which is used in gunnery, time fuses, and fireworks
- huxley English physiologist who, with Alan Hodgkin, discovered the role of potassium and sodium ions in the transmission of the nerve impulse (born in 1917)
- alum a white crystalline double sulfate of aluminum: the potassium double sulfate of aluminum
- alum a double sulphate of aluminum and potassium that is used as an astringent (among other things)
- mica any of various minerals consisting of hydrous silicates of aluminum or potassium etc. that crystallize in forms that allow perfect cleavage into very thin leaves; used as dielectrics because of their resistance to electricity
- gelignite a type of dynamite in which the nitroglycerin is absorbed in a base of wood pulp and sodium or potassium nitrate
- lye a strong solution of sodium or potassium hydroxide
- muscovite a colorless or pale brown mica with potassium