| 释义 |
Definition of selenium in English: seleniumnoun sɪˈliːnɪəmsəˈliniəm mass nounThe chemical element of atomic number 34, a grey crystalline non-metal with semiconducting properties. Selenium occurs mainly as a minor constituent of metallic sulphide ores. The grey crystalline form is a semiconductor showing strong photoconductivity. Selenium is used in rectifiers and photoelectric cells, and for colouring glass and ceramics Example sentencesExamples - Most farmers are adding selenium, copper, zinc and iodine to their water supply.
- The most common trace element deficiencies in cattle are copper, selenium, iodine and cobalt.
- Lead, selenium, tellurium and sulfur are added to copper alloys to improve machinability.
- Duration of clinical mastitis was reduced in the cows supplemented with both vitamin E and selenium.
- While writing this story she added selenium and chromium to her supplement regimen.
- Glutathione peroxidase is an antioxidant enzyme containing both selenium and glutathione.
- Recently, selenium and tellurium have been added as important impurities.
- Vitamin C does not work on its own - it needs vitamin E, selenium, and many other micronutrients all working together.
- Severely malnourished children are often deficient in vitamin A, zinc, iron, folic acid, copper, and selenium.
- Zinc and selenium are essential elements that are used by enzymes in your body.
- In an associated consideration, mercury in the body tends to quell or cripple selenium in enzymes.
- Many species of plants have the ability to absorb metals such as zinc, selenium and nickel from the soil and to concentrate them in their tissues.
- Many studies have shown that supplemental selenium has cancer-preventive properties.
- The Pasminco operation produces lead, zinc, cadmium, selenium, copper sulphate and sulphuric acid.
- Meat is also a decent source of nutrients such as vitamin A, vitamin B12, folate, selenium and zinc.
- Colloidal elemental selenium and metal selenides are not available to plants.
- Vegan diets can be low in iodine and selenium, but this depends on the soil in which the plants are grown.
- Sesame and sunflower seeds are rich in selenium, vitamin E, calcium and zinc.
- There is no homeostatic control mechanism for selenium absorption and selenium is highly absorbable.
- The organic form of selenium has been found to be more effective than sodium selenite for reproducing animals.
Derivatives noun ˈsɛlɪnʌɪd Chemistry A binary compound of selenium with an electropositive element or a radical. Example sentencesExamples - as modifier zinc selenide crystals
- They are made from materials such as calcium fluoride, sapphire, AMTIR, silicon, zinc selenide, and germanium.
- It also combines with a number of metals to form compounds known as selenides as, for example, magnesium selenide (MgSe).
- They separately synthesized rod-shaped nanometre scale crystal of two semi-conductors: cadmium selenide and cadmium telluride.
adjective sɪˈliːnɪk adjective
Origin Early 19th century: modern Latin, from Greek selēnē 'moon'. Rhymes helenium, proscenium, rhenium, ruthenium Definition of selenium in US English: seleniumnounsəˈlēnēəmsəˈliniəm The chemical element of atomic number 34, a gray crystalline nonmetal with semiconducting properties. Example sentencesExamples - There is no homeostatic control mechanism for selenium absorption and selenium is highly absorbable.
- While writing this story she added selenium and chromium to her supplement regimen.
- Vitamin C does not work on its own - it needs vitamin E, selenium, and many other micronutrients all working together.
- Most farmers are adding selenium, copper, zinc and iodine to their water supply.
- The organic form of selenium has been found to be more effective than sodium selenite for reproducing animals.
- The Pasminco operation produces lead, zinc, cadmium, selenium, copper sulphate and sulphuric acid.
- Lead, selenium, tellurium and sulfur are added to copper alloys to improve machinability.
- Sesame and sunflower seeds are rich in selenium, vitamin E, calcium and zinc.
- Recently, selenium and tellurium have been added as important impurities.
- Glutathione peroxidase is an antioxidant enzyme containing both selenium and glutathione.
- Colloidal elemental selenium and metal selenides are not available to plants.
- The most common trace element deficiencies in cattle are copper, selenium, iodine and cobalt.
- Many studies have shown that supplemental selenium has cancer-preventive properties.
- Meat is also a decent source of nutrients such as vitamin A, vitamin B12, folate, selenium and zinc.
- Many species of plants have the ability to absorb metals such as zinc, selenium and nickel from the soil and to concentrate them in their tissues.
- Zinc and selenium are essential elements that are used by enzymes in your body.
- Duration of clinical mastitis was reduced in the cows supplemented with both vitamin E and selenium.
- Vegan diets can be low in iodine and selenium, but this depends on the soil in which the plants are grown.
- In an associated consideration, mercury in the body tends to quell or cripple selenium in enzymes.
- Severely malnourished children are often deficient in vitamin A, zinc, iron, folic acid, copper, and selenium.
Origin Early 19th century: modern Latin, from Greek selēnē ‘moon’. |