selenium
Definitions
General Science
- noun a non-metallic trace element, used in photoelectric cells.
Agriculture
- noun a trace element, an essential part of the diet for all animals. White muscle disease is the symptom of selenium deficiency.
Electronics
- A chemical element whose atomic number is 34. It has several allotropic forms, and may be a red amorphous powder, consist of red crystals, or occur in the form of gray metallic crystals, among others. It has over 25 known isotopes, of which 5 are stable. It has many applications in electronics, including its use in photocells, batteries, rectifiers, TV cameras, photography, and semiconductors. Its chemical symbol is Se.
- chemical symbolSe
- abbreviation in Internet addresses, the top-level domain for Sweden
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