The selenide ion is Se
. A selenide is a chemical compound in which selenium serves as a anion with oxidation number of -2, much as sulfur does in a sulfide.
The term "selenide" was found in the following pages:
Link database: Selenium and Livestock: Metabolism, Toxicity and Deficiency
Uptake of mercury species by fruit flies | EVISA's News
Link database: USGS: Statistics and Information: Thallium
Link database: Chemical Fact Sheet: Selenium