Definitions for selenium
Overview of noun selenium
The noun selenium has 1 senses? (no senses from tagged texts)
1. selenium, Se, atomic number 34
(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))
