Canadian Medical Guide > Chemicals and Drugs > Inorganic Chemicals > Elements > Chalcogens > Selenium Terms and Definitions




Selenium

Medical Definition: An element with the atomic symbol Se, atomic number 34, and atomic weight 78.96. It is an essential micronutrient for mammals and other animals but is toxic in large amounts. Selenium protects intracellular structures against oxidative damage. It is an essential component of GLUTATHIONE PEROXIDASE.
Guide Notes: Se-80; Se-74, 76-78, 82 = SELENIUM (IM) + ISOTOPES (NIM); Se-70-73, 75, 79, 81, 83-85 = SELENIUM RADIOISOTOPES (IM)
CAS Type 1 Name: CAS Number: 7782-49-2

Selenium Medical Definitions and Terms

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