sel·e·nide

[sel-uh-nahyd, -nid]
noun Chemistry.
any compound in which bivalent selenium is combined with a positive element, as potassium selenide, K 2 Se, or with a group.

Origin:
1840–50; selen(ium) + -ide

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Selenide is always a great word to know.
So is flibbertigibbet. Does it mean:
a chattering or flighty, light-headed person.
a gadget; dingus; thingumbob.
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Example sentences
Arsenic may be used for germanium-arsenide-selenide specialty optical materials.
Electrons get trapped in the cadmium-sulfide core while positively charged holes move to the zinc-selenide shell.
Hydrogen selenide is a selenium compound that exists as a colorless gas at room temperature.
Copper sulfide ores have copper selenide as an impurity.
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