Arctogaea Syllabification: (Arc·to·gae·a)Pronunciation: /ˌärktəˈjēə/ (also Arctogea) ZoologyDefinition of Arctogaea a major zoogeographical area comprising the Palearctic, Nearctic, Ethiopian, and Oriental regions. Derivatives Arctogaean adjective Origin:modern Latin, from Greek arktos 'northern' + gaia 'earth'Arctogaea in other Oxford dictionaries Definition of Arctogaea in the British & World English dictionary