selenium
英 [s?'li?n??m]
美[s?'lin??m]
- n. [化學] 硒
英英釋意
- 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)