- (n.) Any one of numerous species of small Turbellaria belonging to Vortex and allied genera. See Illustration in Appendix.
- (n.) A mass of fluid, especially of a liquid, having a whirling or circular motion tending to form a cavity or vacuum in the center of the circle, and to draw in towards the center bodies subject to its action; the form assumed by a fluid in such motion; a whirlpool; an eddy.
- (n.) A supposed collection of particles of very subtile matter, endowed with a rapid rotary motion around an axis which was also the axis of a sun or a planet. Descartes attempted to account for the formation of the universe, and the movements of the bodies composing it, by a theory of vortices.
Webster's Revised Unabridged Dictionary
| APA | Webster's. (2011). vortex. Retrieved September 20, 2026, from http://smartdefine.org/vortex/definitions/2080267 |
| Chicago | Webster's. 2011. "vortex" http://smartdefine.org/vortex/definitions/2080267 (accessed September 20, 2026). |
| Harvard | Webster's 2011, vortex, Smart Define, viewed 20 September, 2026, <http://smartdefine.org/vortex/definitions/2080267>. |
| MLA | Webster's. "vortex" 28 May 2011. Web. 20 September 2026. <http://smartdefine.org/vortex/definitions/2080267> |