Webster's Revised Unabridged Dictionary · 1913

Haloid

Haloid (hā"loid o hal"oid) , adjective

[Greek "a`ls, "alo`s salt + -oid: compare French haloide.]

(Chemistry) 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.
(Chemistry) A haloid substance.