An archaic or variant form meaning 'relating to the entire earth' or 'worldwide.'
Variant of 'amphigaean' with slightly different suffix application, from Greek 'amphi-' and 'gaia' (earth).
This variant spelling shows how older scientific English had less standardization—different authors would write the same concept multiple ways, which is why modern scientists invented the International Code of Nomenclature to stop this naming chaos.
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