(n.) Any one of numerous species of tubicolous annelids of the genus Serpula and allied genera of the family Serpulidae. They secrete a calcareous tube, which is usually irregularly contorted, but is sometimes spirally coiled. The worm has a wreath of plumelike and often bright-colored gills around its head, and usually an operculum to close the aperture of its tube when it retracts.
Webster's Revised Unabridged Dictionary
| APA | Webster's. (2011). Serpula. Retrieved September 21, 2026, from http://smartdefine.org/serpula/definitions/2060738 |
| Chicago | Webster's. 2011. "Serpula" http://smartdefine.org/serpula/definitions/2060738 (accessed September 21, 2026). |
| Harvard | Webster's 2011, Serpula, Smart Define, viewed 21 September, 2026, <http://smartdefine.org/serpula/definitions/2060738>. |
| MLA | Webster's. "Serpula" 28 May 2011. Web. 21 September 2026. <http://smartdefine.org/serpula/definitions/2060738> |