halide

noun

1. Any salt of any halogen acid (such as hydrochloric acid, hydrofluoric acid, or hydroiodic acid).

   “sulfur halides such as disulfur dichloride”

2. (especially)Any salt of any halogen acid (such as hydrochloric acid, hydrofluoric acid, or hydroiodic acid).

   “Potassium iodide is a halide.”

3. The anionic form of a halogen atom (a group 17 element).

   “Iodide is a halide.”