# selenium
## Noun (N)
### Sense: a toxic nonmetallic element related to sulfur and tellurium; occurs in several allotropic forms; a stable grey metallike allotrope conducts electricity better in the light than in the dark and is used in photocells; occurs in sulfide ores (as pyrite)
- ซีลีเนียม
- ธาตุเซเลเนียม
- เลขอะตอม 34