from The American Heritage® Dictionary of the English Language, 4th Edition
- n. A stocky wild sheep (Ovis dalli) of the mountainous regions of northwest North America, ranging from white to nearly black and having curved yellowish horns.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. large white wild sheep of northwestern Canada and Alaska
After William Healey Dall (1845-1927), American naturalist.(American Heritage® Dictionary of the English Language, Fourth Edition)