also: ぜんほくく
noun
Holarctic region
Biogeographical term for the northern continents (North America, Europe, northern Asia). Used in ecology and zoology.
全北区には多くの共通種が分布している。
Many common species are distributed across the Holarctic region.
From 全 (zen, 'whole') + 北 (hoku, 'north') + 区 (ku, 'region'), a direct translation of 'Holarctic'.