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Dictionary of Cancer Terms

View in Spanish: Se-metil-selenio-L-cisteína

Se-methyl-seleno-L-cysteine (… -MEH-thul-seh-LEE-noh … SIS-teh-een)
A substance that contains the element selenium (a nutrient that protects cells against damage) and is found in certain plants such as garlic and broccoli. Se-methyl-seleno-L-cysteine can act as an antioxidant and may help prevent or slow the growth of cancer cells. It is a type of amino acid.

Source: National Cancer Institute Dictionary of Cancer Terms, available at www.cancer.gov/dictionary.