from The American Heritage® Dictionary of the English Language, 4th Edition
- n. A soft, silver-white, highly or explosively reactive metallic element that occurs in nature only in compounds. It is obtained by electrolysis of its common hydroxide and found in, or converted to, a wide variety of salts used especially in fertilizers and soaps. Atomic number 19; atomic weight 39.098; melting point 63.65°C; boiling point 774°C; specific gravity 0.862; valence 1. See Table at element.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. A soft, waxy, silvery reactive metal that is never found unbound in nature; an element (symbol K) with an atomic number of 19 and atomic weight of 39.0983. The symbol is derived from the Latin kalium.
from the GNU version of the Collaborative International Dictionary of English
- n. An Alkali element, occurring abundantly but always combined, as in the chloride, sulphate, carbonate, or silicate, in the minerals sylvite, kainite, orthoclase, muscovite, etc. Atomic weight 39.0. Symbol K (Kalium).
from The Century Dictionary and Cyclopedia
- n. Chemical symbol, K (for kalium); atomic weight, 39.1. The metallic base of the alkali potash, a substance not occurring uncombined in nature, but in various combinations widely diffused and of the highest importance. See potash.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. a 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
How was I to know that this single substance which you call potassium was all we needed to make this land productive and valuable?
They often contain potassium, which aids in hydration.
Blood Pressure: This unique tropical fruit is extremely high in potassium yet low in salt, making it perfect to beat blood pressure.
It is also rich in potassium and is one of the best value foods around.
Tamarind, besides being a good source of B vitamins, calcium and potassium, is being studied as a possible cholesterol-lowering agent, and an extract from its seeds is made into eye drops to treat dry eye syndrome.
We get our potassium from the bananas growing in our back yard, and there is a fair amount of lutein for the eyes in a mango.
It is often called the potassium argon clock, because argon-40 (one lower in the periodic table) is one of the elements to which potassium-40 decays (the other, resulting from a different kind of radioactive decay, is calcium-40, one higher in the periodic table).
An Islamic myth tells the tale that after Adam and Eve succumbed to the "Apple" they started covering their "nudity" with banana leaves rather than fig. From a more practical standpoint bananas are rich in potassium and B vitamins, necessities for sex hormone production.
I recently received an email asking if there was milk in potassium lactate.
This was the discovery of the 'black reaction' (reazione nera), based on nervous tissue hardening in potassium bichromate and impregnation with silver nitrate.