(n.) A peculiar gregarious burrowing rodent (Haplodon rufus), native of the coast region of the Northwestern United States. It somewhat resembles a muskrat or marmot, but has only a rudimentary tail. Its head is broad, its eyes are small and its fur is brownish above, gray beneath. It constitutes the family Haplodontidae. Called also boomer, showt'l, and mountain beaver.
Webster's Revised Unabridged Dictionary
| APA | Webster's. (2011). sewellel. Retrieved September 26, 2026, from http://smartdefine.org/sewellel/definitions/2060899 |
| Chicago | Webster's. 2011. "sewellel" http://smartdefine.org/sewellel/definitions/2060899 (accessed September 26, 2026). |
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| MLA | Webster's. "sewellel" 28 May 2011. Web. 26 September 2026. <http://smartdefine.org/sewellel/definitions/2060899> |