catflap.org Online Dictionary Query |
From WordNet (r) 2.0 : [ wn ]
atomic number 11
n : a silvery soft waxy metallic element of the alkali metal
group; occurs abundantly in natural compounds (especially
in salt water); burns with a yellow flame and reacts
violently in water; occurs in sea water and in the
mineral halite (rock salt) [syn: sodium, Na]