Sulfide and Zinc sulfide

Sulfide noun - A compound of sulphur and some other element that is more electropositive.

Zinc sulfide and sulfide are semantically related. In some cases you can replace phrase "Zinc sulfide" with "Sulfide", this terms are similar.

Zinc sulfide noun - A yellow to white crystalline fluorescent compound that occurs naturally as sphalerite or wurtzite and is used as a luminous pigment.

Sulfide and zinc sulfide are semantically related. You can use "Sulfide" instead a noun phrase "Zinc sulfide".