Amphigamous :: Amphigamous (a.) Having a structure entirely cellular, and no distinct sexual organs; -- a term applied by De Candolle to the lowest order of plants..
Amphigean :: Amphigean (a.) Extending over all the zones, from the tropics to the polar zones inclusive..
Amphigen :: Amphigen (n.) An element that in combination produces amphid salt; -- applied by Berzelius to oxygen, sulphur, selenium, and tellurium..