- (n.) A ripple in a stream or current of water; also, a place where the water ripples, as on a shallow rapid.
- (n.) A trough or sluice having cleats, grooves or steps across the bottom for holding quicksilver and catching particles of gold when auriferous earth is washed; also, one of the cleats, grooves or steps in such a trough. Also called ripple.
Webster's Revised Unabridged Dictionary
| APA | Webster's. (2011). riffle. Retrieved September 24, 2026, from http://smartdefine.org/riffle/definitions/2056004 |
| Chicago | Webster's. 2011. "riffle" http://smartdefine.org/riffle/definitions/2056004 (accessed September 24, 2026). |
| Harvard | Webster's 2011, riffle, Smart Define, viewed 24 September, 2026, <http://smartdefine.org/riffle/definitions/2056004>. |
| MLA | Webster's. "riffle" 28 May 2011. Web. 24 September 2026. <http://smartdefine.org/riffle/definitions/2056004> |