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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Pepperoni Pepperoni contains protein, selenium, and vitamin K.
—
Elizabeth Barnes, Verywell Health, 4 Mar. 2025
Greek yogurt and cottage cheese provide essential vitamins and minerals, including vitamin B12, calcium, selenium, and zinc.
—Jillian Kubala, Health, 4 Mar. 2025
These conflicting results may be due to the different forms of selenium each study tested, as well as differences in baseline selenium levels among participants.
—Aliasger K. Salem, The Conversation, 25 Feb. 2025
In their whole form, grains provide B vitamins, Vitamin E, selenium, zinc, copper, antioxidants, and phytochemicals.
—Allison Futterman, Discover Magazine, 13 Feb. 2025
See All Example Sentences for selenium
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Elizabeth Barnes, Verywell Health, 4 Mar. 2025
Greek yogurt and cottage cheese provide essential vitamins and minerals, including vitamin B12, calcium, selenium, and zinc.
—Jillian Kubala, Health, 4 Mar. 2025
These conflicting results may be due to the different forms of selenium each study tested, as well as differences in baseline selenium levels among participants.
—Aliasger K. Salem, The Conversation, 25 Feb. 2025
In their whole form, grains provide B vitamins, Vitamin E, selenium, zinc, copper, antioxidants, and phytochemicals.
—Allison Futterman, Discover Magazine, 13 Feb. 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 13 Mar. 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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