adj. 1. Of, relating to, or resembling the mustelids. 2. Of, relating to, or belonging to the subfamily Mustelinae, which includes the weasels and martens. [Latin mūstēlīnus, of a weasel, from mūstēla, weasel, probably from mūs, mouse; see mūs- in the Appendix of Indo-European roots.] muste·line′ n. |
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