alkali metal

from WordNet (r) 3.0 (2006)

alkali metal
    n 1: any of the monovalent metals of group I of the periodic
         table (lithium or sodium or potassium or rubidium or cesium
         or francium); "the hydroxides of the alkali metals are
         strongly alkaline" [syn: {alkali metal}, {alkaline metal}]

from The Collaborative International Dictionary of English v.0.48

Alkali metal \Alkali metal\
   Any one of the univalent metals of group I of the periodic
   table of the elements, including lithium, sodium, potassium,
   rubidium, cesium, and francium. The hydroxides of these
   metals are soluble in water and form strongly basic
   solutions.
   [PJC.]

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