selenium
英 [sɪ'liːnɪəm]
美[sə'linɪəm]
- n. [化学] 硒
英语释意
- 1. 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)