Amphigen

• (n.) An element that in combination produces amphid salt; -- applied by Berzelius to oxygen, sulphur, selenium, and tellurium.
Found on http://thinkexist.com/dictionary/meaning/amphigen/

Amphigen

Am'phi·gen noun [ Greek ... + -gen : confer French amphigène .] (Chemistry) An element that in combination produces amphid salt; -- applied by Berzelius to oxygen, sulphur, selenium, and tellurium. [ R.]
Found on http://www.encyclo.co.uk/webster/A/73
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