[1] : The Collaborative International Dictionary of English v.0.48

potassium \potas"sium\, n. nl. see potassa, potash.
   chem.
   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.
   1913 webster

   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.
         1913 webster

   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.
      1913 webster
see also:
potassa potash potassium permanganate kmno4 chameleon mineral potassium bitartrate 
cream of tartar cream 

[2] : WordNet (r) 2.0

potassium
     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 syn: k, atomic number 19
see also:
k atomic number 19 

[3] : Elements database 20001107

potassium
symbol: k
atomic number: 19
atomic weight: 39.0983
soft silvery metallic element belonging to group 1 of the periodic table
alkali metals. occurs naturally in seawater and a many minerals. highly
reactive, chemically, it resembles sodium in its behavior and compounds.
discovered by sir humphry davy in 1807.

Potassium >> P Words
Potassium, definition of term: Potassium
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Potassium Hydro >> P Words
Potassium Hydro, definition of term: Potassium Hydro
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Potassium Nitra >> P Words
Potassium Nitra, definition of term: Potassium Nitra
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Potassium Perma >> P Words
Potassium Perma, definition of term: Potassium Perma
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Potassium Ferro >> P Words
Potassium Ferro, definition of term: Potassium Ferro
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Potassium Chlor >> P Words
Potassium Chlor, definition of term: Potassium Chlor
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Potassium Bitar >> P Words
Potassium Bitar, definition of term: Potassium Bitar
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Potassium Bromi >> P Words
Potassium Bromi, definition of term: Potassium Bromi
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Potassium Carbo >> P Words
Potassium Carbo, definition of term: Potassium Carbo
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Potassium Dichr >> P Words
Potassium Dichr, definition of term: Potassium Dichr
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