WordReference Random House Unabridged Dictionary of American English © 2026
Arc•to•gae•a
(ärk′tə jē′ə),USA pronunciation n.
Arc′to•gae′an, Arc′to•ge′an, Arc′to•gae′al, Arc′to•ge′al, Arc′to•gae′ic, Arc′to•ge′ic, adj.
- a biogeographical division comprising the Holarctic and Paleotropical regions.
- Greek gaîa land, earth)
- Greek arkto- combining form of árktos; see arctic) + gaea (
- Neo-Latin, equivalent. to arcto- (
- 1865–70