selenium
3
8.1
- noun
- /səˈliːniəm/
- Specialized
:
selenio
- The spectrum here displays a typical anomalous-scattering energy scan near the selenium K edge.
- selenium concentrations
- mercury and selenium
- selenium and zinc
That alternative was to create a small cylindrical plasma or some material like selenium.
- That alternative was to create a small cylindrical plasma or some material like selenium.
Examples
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The most commonly used anomalous scatterer is selenium, which can be substituted for sulfur in methionine, one of 20 amino acid residues that make up proteins.
Academic text (2006) -
Solid-state rectifiers based on the use of copper oxide and selenium preceded the transistor by at least 15 years, and the use of pyrite and galena crystals for detectors goes back even further.
Academic text (1997) -
The active ingredient is selenium sulfide.
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In the 1980s, the National Cancer Institute wanted information on selenium levels in foods because the element was being investigated as an anticancer agent.
Academic text (1995) -
The silver concentrations were positively correlated with mercury concentrations, selenium concentrations, and with the ages of the animals.
Academic text (2000) -
Concentrations of essential elements such as zinc, copper, and selenium, and potentially toxic elements such as cadmium and mercury, are commonly measured in the liver and kidneys.
Academic text (2000) -
The soil in certain areas naturally contains high levels of selenium, which can be toxic in large amounts.
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Many electronic devices, such as photocells, utilize selenium for their functionality.
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The study showed that tadpoles retained levels of selenium from the larval stage through metamorphosis.
Synonyms
3
8.8
A chemical symbol for the element selenium used in light-sensitive cells
A chemical element used in photocells, related to sulfur and toxic in large amounts
Compounds
Surface Forms
Etymology
Selenium comes from the Greek word selene, which means 'moon'. Because selenium conducts electricity better in 'light' than in darkness, you can remember it by thinking of the moon and light — that's why it is used in photocells and other light-sensitive electronics.