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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
Recent Examples on the Web
Seafood: Three ounces of tuna, shrimp, or sardines meet more than 75% of the daily value of selenium.
—Merve Ceylan, Health, 21 Oct. 2024
Good Source of Micronutrients Swai is a good source of many essential micronutrients, including selenium, phosphorus, zinc, and certain B vitamins.
—Isabel Vasquez Rd Ldn, Health, 24 Sep. 2024
With high concentration of antioxidants applied after removing dead skin cells, the treatment is then followed by the infusion of the selenium antioxidant which stimulates circulation and results in hydrated, and dewy skin.
—Angela Lei, Forbes, 20 Sep. 2024
Garlic Garlic is an excellent source of vitamin C, manganese, vitamin B6, selenium, and fiber.
—Julie Marks, Verywell Health, 10 Oct. 2024
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Word History
Etymology
New Latin, from Greek selēnē moon, from selas brightness
First Known Use
1818, in the meaning defined above
Phrases Containing selenium
Dictionary Entries Near selenium
Cite this Entry
“Selenium.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/selenium. Accessed 28 Nov. 2024.
Kids 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
More from Merriam-Webster on selenium
Nglish: Translation of selenium for Spanish Speakers
Britannica.com: Encyclopedia article about selenium
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