from The American Heritage® Dictionary of the English Language, 4th Edition
- adj. Distributed or occurring chiefly throughout the boreal regions of North America and Eurasia. Used especially of plants.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- adj. Of or pertaining to a region of abundant forest growth, particularly spanning Eurasia and North America.
from The Century Dictionary and Cyclopedia
- Belonging to the zone next outside the boreal or Arctic region.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- adj. comprising or throughout far northern regions
circum- + boreal (Wiktionary)