• Webster's Revised Unabridged Dictionary
    • a Amphigean Extending over all the zones, from the tropics to the polar zones inclusive.
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Century Dictionary and Cyclopedia
    • amphigean Extending around the earth: in botany, applied to genera or species that are found around the globe in approximately the same latitude.
    • amphigean [capitalized] [⟨ NL. Amphigæa + -an.] In zoögeog., a term applied to the temperate South American realm as one of the prime zoölogical divisions of the earth's land-surface, with reference to its equivocal or ambiguous zoölogical character. Together with the Dendrogean or tropical American realm, it composes the Neotropical region of Sclater.
    • amphigean In botany, bearing flowers from a rootstock.
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Webster's Revised Unabridged Dictionary
Gr. + , , the earth