Palaearctic
/ˌpælɪˈɑːktɪk/( <主美> 亦作Palearctic)
adjective
1- Zoology of, relating to, or denoting a zoogeographical region comprising Eurasia north of the Himalayas, together with North Africa and the temperate part of the Arabian peninsula. The fauna is closely related to that of the Nearctic region.【动】（与）古北区（有关）的（该区包括喜马拉雅山脉以北的欧亚大陆、非洲北部及阿拉伯半岛的温带地区。它的动物区系与新北区的密切相关）。比较HOLARCTIC.
1.1
- as noun the Palaearctic the Palaearctic region古北区。