Word Study
na
WORDNET DICTIONARY
Noun na has 1 sense
- na(n = noun.substance) atomic number 11, sodium - 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); Array is a kind of metal, metallic element
OXFORD DICTIONARY
na, symb. Chem. the element sodium.
na, adv. Sc. (in comb.; usu. with an auxiliary verb) = NOT (I canna do it; they didna go).
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