chalcogenide
noun
chal·co·gen·ide ˈkal-kə-jə-ˌnīd 
: a binary compound of a chalcogen with a more electropositive element or radical
Word History
First Known Use
1935, in the meaning defined above
- underruns
- unders
- undersailed
- undersanded
- undersaturated
- undersaturation
- underscore
- underscored
- underscores
- underscoring
- underscrub
- underscrubs
- undersea
- undersealed
- undersealing
- underseals
- underseas
- undersecretariat
- undersecretariats
- undersecretaries
- undersecretary
- undersecretaryship
- undersell
- undersellers
- underselling