1
: a silver-white soft waxy ductile element of the alkali metal group with atomic number 11 that occurs abundantly in nature in combined form and is very active chemically see Chemical Elements Table
2
: salt sense 1a, sodium chloride
—not used technically
reduced her sodium intake
a low-sodium diet
Examples of sodium in a Sentence
Recent Examples on the Web
May Cause Bloating and Weight Gain A notable downside is that beef jerky can be high in sodium (salt).
—
Cristina Mutchler, Verywell Health, 31 Jan. 2025
Milk is also a great source of sodium, calcium and potassium, and recent studies have considered the benefits for drinking milk as a post-workout beverage, per Healthline.
—Caroline C. Boyle, USA TODAY, 30 Jan. 2025
When salty water is absorbed into the soil, sodium ions displace nutrients such as potassium and phosphorus, interfering with beneficial microbes.
—Lauren Landers, Better Homes & Gardens, 24 Jan. 2025
The sodium level of the Whataburger Jr., however, was the second-highest at 750 milligrams.
—Christine Rousselle, Fox News, 24 Jan. 2025
See all Example Sentences for sodium 
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Cristina Mutchler, Verywell Health, 31 Jan. 2025
Milk is also a great source of sodium, calcium and potassium, and recent studies have considered the benefits for drinking milk as a post-workout beverage, per Healthline.
—Caroline C. Boyle, USA TODAY, 30 Jan. 2025
When salty water is absorbed into the soil, sodium ions displace nutrients such as potassium and phosphorus, interfering with beneficial microbes.
—Lauren Landers, Better Homes & Gardens, 24 Jan. 2025
The sodium level of the Whataburger Jr., however, was the second-highest at 750 milligrams.
—Christine Rousselle, Fox News, 24 Jan. 2025
See all Example Sentences for sodium
Dictionary Entries Near sodium
Cite this Entry
“Sodium.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/sodium. Accessed 12 Feb. 2025.
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Medical Definition
sodium
noun
so·di·um
ˈsōd-ē-əm 
: a silver white soft waxy ductile element of the alkali metal group that occurs abundantly in nature in combined form and is very active chemically
—symbol Na
see Chemical Elements Table
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