Sodium: The major positive ion (cation) in fluid outside of cells. The chemical notation for sodium is Na+. When combined with chloride, the resulting substance is table salt.
Excess sodium (such as from fast food hamburger and fries) is excreted in the urine. Too much or too little sodium can cause cells to malfunction, and extremes can be fatal.
Normal blood sodium level is 135 - 145 milliEquivalents/liter (mEq/L), or in international units, 135 - 145 millimoles/liter (mmol/L).
Library > Literature & Language > Dictionary ( sŠ' dē-əm ) n. ( Symbol Na ) A soft, light, extremely malleable silver-white metallic element that reacts ...
Sodium — Discover ways to cut back on sodium and salt in your diet.
Brief description: sodium is a Group 1 element (or IA in older labelling styles). Group 1 elements are often referred to as the "alkali metals".
Sodium's properties, interesting facts, discovery, videos, images, states, energies, appearance and characteristics.
noun 1. Chemistry . a soft, silver-white, metallic element that oxidizes rapidly in moist air, occurring in nature only in the combined state, and used in the ...