(n.) Any whale of the genera Sibbaldius, Balaenoptera, and allied genera, of the family Balaenopteridae, characterized by a prominent fin on the back. The common finbacks of the New England coast are Sibbaldius tectirostris and S. tuberosus.
Webster's Revised Unabridged Dictionary
| APA | Webster's. (2011). finback. Retrieved September 21, 2026, from http://smartdefine.org/finback/definitions/2008052 |
| Chicago | Webster's. 2011. "finback" http://smartdefine.org/finback/definitions/2008052 (accessed September 21, 2026). |
| Harvard | Webster's 2011, finback, Smart Define, viewed 21 September, 2026, <http://smartdefine.org/finback/definitions/2008052>. |
| MLA | Webster's. "finback" 27 May 2011. Web. 21 September 2026. <http://smartdefine.org/finback/definitions/2008052> |