Definition

Noun A small carnivorous mammal (Mustela nivalis) found in Canada and the northeastern United States. It is a subspecies of the least weasel, which is the smallest member of the weasel family (Mustelidae).

Usage

The term "New World least weasel" is used specifically in zoology and wildlife contexts to refer to this particular geographical population of the least weasel species. * The New World least weasel has a brown coat that turns white in winter. * Researchers are studying the habitat range of the New World least weasel.

Advanced Usage

• The term is often used in scientific literature to distinguish North American populations from the "Old World" least weasels of Europe and Asia.
• It can be part of a formal taxonomic name when referring to the subspecies .

Variants and Related Words

• Least weasel (n): The common name for the entire species (), which includes various subspecies worldwide.
• Weasel (n): The general term for mammals in the genus .
• Mustelid (n): A member of the family Mustelidae, which includes weasels, otters, badgers, and ferrets.

Synonyms

• American least weasel
• (Subspecies) Mustela nivalis rixosa

Notes on Meaning

This term has a single, specific zoological meaning. It does not have idiomatic or phrasal verb uses. It refers exclusively to the animal itself.

Noun

1. of Canada and northeastern United States