amphigen definition

  • noun:
    • a feature that in combination produces amphid sodium; applied by Jöns Jacob Berzelius to oxygen, sulphur, selenium, and tellurium.
    • An element that in combo creates amphid salt; -- applied by Berzelius to air, sulphur, selenium, and tellurium.
    • In botany, a thallogen: a name used by Brongniart to those cryptogams (the algæ, fungi, and lichens) which boost by growth of cellular structure in all directions, and never at the summit of a distinct axis.
    • 2. In chem., a component, like air, capable of developing with other elements acid and basic substances.
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