Riffle

English Meaning

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.

1. A rocky shoal or sandbar lying just below the surface of a waterway.
2. A stretch of choppy water caused by such a shoal or sandbar; a rapid.
3. In mining, the sectional stone or wood bottom lining of a sluice, arranged for trapping mineral particles, as of gold.
4. A groove or block in such a lining.
5. Games The act or an instance of shuffling cards.
6. Games To shuffle (playing cards) by holding part of a deck in each hand and raising up the edges before releasing them to fall alternately in one stack.
7. To thumb through (the pages of a book, for example).
8. Games To shuffle cards.
9. To become choppy, as water.

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