selenious
adjective
se·le·ni·ous
sə̇ˈlēnēəs
variants or less commonly selenous
sə̇ˈlēnəs,
ˈselən-
: of, relating to, or containing selenium —used especially of compounds in which this element has a lower valence than in selenic compounds
Word History
Etymology
International Scientific Vocabulary selen- entry 2 + -ious or -ous