selenium

noun

se·​le·​ni·​um sə-ˈlē-nē-əm How to pronounce selenium (audio)
: 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 According to researchers of this 2021 study published in the Nutrients journal, by adding just one egg in the morning, including the yolk, intakes of pantothenic acid, riboflavin, selenium, and vitamin D increased over 10 percent. Brittany Edelmann, Discover Magazine, 9 Jan. 2024 Dates contain high levels of many minerals including potassium, magnesium, manganese, selenium, and copper. Christina Manian, Rdn, Better Homes & Gardens, 2 July 2023 Other nutrients in cottage cheese include phosphorus, selenium, and vitamin A. People with diabetes or insulin resistance can benefit from eating cottage cheese, according to Miranda Galati, MHSc, RD, founder of Real Life Nutritionist. Sarah Garone, Health, 21 July 2023 The combo of omega-3's, selenium and vitamins A and D are key for supporting immunity, both in the short and long term. Good Housekeeping, 2 May 2023 In addition to vitamins, shedding supplements also often contain minerals such as selenium and copper that further enhance coat health. Amber Smith, Discover Magazine, 31 July 2023 Each cluster consists of an octahedron made of six rhenium atoms nestled within a cube made of eight selenium atoms, with a chlorine atom on the top and bottom of the cluster. IEEE Spectrum, 6 Nov. 2023 Today, its primary source is nearby farm runoff, which includes fertilizer, heavy metals and toxins like arsenic and selenium, Lo explained to CBS News. Jonathan Vigliotti, CBS News, 22 Sep. 2023 The state program already helps small systems sample for nearly 100 chronic contaminants in drinking water, among them heavy metals like arsenic, lead, selenium, mercury and uranium. The Arizona Republic, 18 Aug. 2023 See More

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'selenium.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History

Etymology

New Latin, from Greek selēnē moon, from selas brightness

First Known Use

1818, in the meaning defined above

Time Traveler
The first known use of selenium was in 1818

Dictionary Entries Near selenium

Cite this Entry

“Selenium.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/selenium. Accessed 20 Feb. 2024.

Kids Definition

selenium

noun
se·​le·​ni·​um sə-ˈlē-nē-əm How to pronounce selenium (audio)
: 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 How to pronounce selenium (audio)
: 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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