NearcticPronunciation: /nɪˈɑːktɪk/Definition of Nearctic adjective Zoology relating to or denoting a zoogeographical region comprising North America as far south as northern Mexico, together with Greenland. Compare with Holarctic. (as noun the Nearctic) the Nearctic region. Origin: mid 19th century: from neo- 'new' + ArcticNearctic in other Oxford dictionaries Definition of Nearctic in the US English dictionary
