na has definitions from the field of chemistry
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[ noun ] Woman's first name, popularity rank in the U.S. is 3303
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[ noun ] Last name, frequency rank in the U.S. is 13205
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[ noun ] (chemistry) 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)
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