• Webster's Revised Unabridged Dictionary
    • n Amphid (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.
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Century Dictionary and Cyclopedia
    • amphid A term applied by Berzelius to the salts of those acids which contain oxygen, to distinguish them from the haloid salts. The amphid salts were regarded as compounds of two oxids, one electro-positive, the other electro-negative.
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Webster's Revised Unabridged Dictionary
Gr. 'a`mfw both: cf. F. amphide,