Holarctic
Pronunciation : Hol"arc*tic
Part of Speech : a.
Definition : Defn: Of or pert. to the arctic regions collectively; specif. (Zo?geography),
Defn: designating a realm or region including the northern parts of the Old and the New World. It comprises the Palearctic and Nearctic regions or subregions.
[Holo- + arctic.]
Source : Webster's Unabridged Dictionary, 1913