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
Low sodium leads to confusion, headaches, irritability, and even seizures.
—
Melissa Nieves, Verywell Health, 13 Feb. 2025
Note that canned green beans are often high in sodium, which can increase blood pressure.
—Lindsey Desoto, Health, 11 Feb. 2025
One whole dill pickle contains about 5 calories and 260 mg of sodium.
—Sheah Rarback, Miami Herald, 6 Feb. 2025
There have been many false starts along the way to finding a drug that could block one specific sodium channel.
—Brenda Goodman, CNN, 30 Jan. 2025
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Melissa Nieves, Verywell Health, 13 Feb. 2025
Note that canned green beans are often high in sodium, which can increase blood pressure.
—Lindsey Desoto, Health, 11 Feb. 2025
One whole dill pickle contains about 5 calories and 260 mg of sodium.
—Sheah Rarback, Miami Herald, 6 Feb. 2025
There have been many false starts along the way to finding a drug that could block one specific sodium channel.
—Brenda Goodman, CNN, 30 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 21 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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