noun
sodium
SOH-deerm
noun
1
A soft, silvery, highly reactive chemical element (symbol Na) that never occurs alone in nature.
"Table salt is a compound of sodium and chlorine."
How to Use Sodium
Learner’s notesIn plain EnglishA chemical element found combined with other substances, most familiarly in table salt.
Common pairings
sodium chloride
low-sodium diet
Word Forms
sodiums plural
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Table salt is a compound of _____ and chlorine.
Etymology
Coined in 1808 by chemist Humphry Davy, from "soda" + the element-naming suffix -ium.