 selenium |
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| 1. | [ noun ] (chemistry) a toxic nonmetallic element related to sulfur and tellurium; occurs in several allotropic forms; a stable gray metallike allotrope conducts electricity better in the light than in the dark and is used in photocells; occurs in sulfide ores (as pyrite) | |
| Synonyms: | atomic_number_34 Se | |
| Related terms: | chemical_element antioxidant pyrite | |
| Similar spelling: |
Sellman |
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