What is "long-tailed weasel"

n. the common American weasel distinguished by large size and black-tipped tail [syn: longtail weasel, Mustela frenata]

The long-tailed weasel (Mustela frenata), also known as the bridled weasel or big stoat is a species of mustelid distributed from southern Canada throughout all the United States and Mexico, southward through all of Central America and into northern South America.