- so|di|um
- so|di|um «SOH dee uhm», noun.a soft, silver-white, chemical element found only in combination with other elements. Salt and soda contain sodium. Sodium is one of the alkali metals which oxidize rapidly in the presence of air and react violently with water. »
Sodium is made by distillation and in New York any still—sodium or bourbon—must be okayed by the liquor board (Wall Street Journal).
Useful english dictionary. 2012.