| na | | |
| n. (substance) | 1. atomic number 11, na, 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). |
| ~ metal, metallic element | any of several chemical elements that are usually shiny solids that conduct heat or electricity and can be formed into sheets etc.. |
| ~ halite, rock salt | naturally occurring crystalline sodium chloride. |
| ~ brine, saltwater, seawater | water containing salts.; "the water in the ocean is all saltwater" |
| na | | |
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