Ha"loid (? or ?), a. [Gr. "a`ls, "alo`s salt + -oid: cf. F. calde.] 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.
A haloid substance.
© Webster 1913.