Amphid \Am"phid\, n. [Gr. 'a`mfw both: cf. F. amphide.] (Chem.)
A salt of the class formed by the combination of an acid and
a base, or by the union of two oxides, two sulphides,
selenides, or tellurides, as distinguished from a {haloid}
compound. [R.] --Berzelius.
[1913 Webster]