selenium
noun
se·le·ni·um
sə-ˈlē-nē-əm 
: a photosensitive element that occurs in both crystalline and amorphous forms, is obtained chiefly as a by-product in copper refining, and is used especially in glass, semiconductor devices, and alloys see Chemical Elements Table
Examples of selenium in a Sentence
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As a result, foods that are high in protein tend to also be high in selenium.
—
Patty Weasler, Verywell Health, 27 May 2025
Additionally mushrooms contain minerals such as potassium, selenium, phosphorus, and magnesium, as well as B vitamins and antioxidants.
—Christina Pérez, Vogue, 27 May 2025
White bread also has the benefit of having small amounts of calcium, magnesium, phosphorus, selenium and potassium, per the U.S. Department of Agriculture.
—Daryl Austin, USA Today, 21 May 2025
Flaxseed Bread Flaxseeds are high in important nutrients like fiber, copper, magnesium, and selenium.
—Jillian Kubala, Health, 20 May 2025
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Patty Weasler, Verywell Health, 27 May 2025
Additionally mushrooms contain minerals such as potassium, selenium, phosphorus, and magnesium, as well as B vitamins and antioxidants.
—Christina Pérez, Vogue, 27 May 2025
White bread also has the benefit of having small amounts of calcium, magnesium, phosphorus, selenium and potassium, per the U.S. Department of Agriculture.
—Daryl Austin, USA Today, 21 May 2025
Flaxseed Bread Flaxseeds are high in important nutrients like fiber, copper, magnesium, and selenium.
—Jillian Kubala, Health, 20 May 2025
See All Example Sentences for selenium
Cite this Entry
“Selenium.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/selenium. Accessed 3 Jun. 2025.
Copy CitationKids Definition
selenium
noun
se·le·ni·um
sə-ˈlē-nē-əm
: an element that is sensitive to light and is used especially in glass, alloys, and electronic devices see element
Medical Definition
selenium
noun
se·le·ni·um
sə-ˈlē-nē-əm
: a nonmetallic photosensitive element that occurs in both crystalline and amorphous forms, is an essential trace element found especially in grains and meat, and is used chiefly in glass, semiconductor devices, and alloys
—symbol Se
see Chemical Elements Table, selenosis
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