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POTASSIUM
potassium, atomic number
(noun) 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
Source: WordNet® 3.1
Etymology
Noun
potassium (usually uncountable, plural potassiums)
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.
(countable) A single atom of this element.
Anagrams
• assumptio
Source: Wiktionary
Po*tas"si*um, n. Etym: [NL. See Potassa, Potash.] (Chem.)
Definition: 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).
Note: It is reduced from the carbonate as a soft white metal, lighter than water, which oxidizes with the greatest readiness, and, to be preserved, must be kept under liquid hydrocarbons, as naphtha or kerosene. Its compounds are very important, being used in glass making, soap making, in fertilizers, and in many drugs and chemicals. Potassium permanganate, the salt KMnO4, crystallizing in dark red prisms having a greenish surface color, and dissolving in water with a beautiful purple red color; -- used as an oxidizer and disinfectant. The name chameleon mineral is applied to this salt and also to potassium manganate.
– Potassium bitartrate. See Cream of tartar, under Cream.
Source: Webster’s Unabridged Dictionary 1913 Edition
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(noun) (music) playing in a different key from the key intended; moving the pitch of a piece of music upwards or downwards
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