Source : Webster's Revised Unabridged Dictionary (1913)

Haloid \Ha"loid\ (? or ?), a. [Gr. "a`ls, "alo`s salt + -oid:
   cf. F. halo["i]de.] (Chem.)
   Resembling salt; -- said of certain binary compounds
   consisting of a metal united to a negative element or
   radical, and now chiefly applied to the chlorides, bromides,
   iodides, and sometimes also to the fluorides and cyanides. --
   n. A haloid substance.