
1) Leaf 2) Leat 3) Ripple 4) Rippling 5) Wavelet
Found on
https://www.crosswordclues.com/clue/riffle

1) Leaf through rapidly 2) Mix cards 3) Moving ridge 4) Rearrange before dealing 5) Ripple 6) Rippling 7) Shuffle cards in a way 8) Stir up so as to form ripples 9) Thumb the pages 10) Thumb through 11) Twitch or flutter 12) Water stream 13) Wave 14) Wavelet 15) Way of mixing cards
Found on
https://www.crosswordclues.com/clue/riffle

- a small wave on the surface of a liquid
- shuffling by splitting the pack and interweaving the two halves at their corners
Found on

A riffle is a short, relatively shallow and coarse-bedded length of stream over which the stream flows at slower velocity but a higher turbulence than it normally does in comparison to a pool. As a result of the lowered velocity and heightened turbulence, small ripples are frequently found. Riffles are usually caused by an increase in a stream bed...
Found on
http://en.wikipedia.org/wiki/Riffle

A small rapid in a river or stream (see also Eddy, Pool, Run, Scour, Slack).
Found on
http://english-fly-fishing-flies.s3-website-eu-west-1.amazonaws.com/glossar

to ruffle one's feathers so as to accentuate the white spots (Spotted Owls only)
Found on
http://guardiansofgahoole.wikia.com/wiki/Owl_Glossary

a small rapid in a river or stream.
Found on
http://howtoflyfish.orvis.com/glossary/beginners-fly-fishing-glossary

• (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. Als...
Found on
http://thinkexist.com/dictionary/meaning/riffle/

A reach of stream that is characterized by shallow, fast moving water broken by the presence of rocks and boulders.
Found on
http://www.encyclo.co.uk/local/21804

A relatively shallow, swift section of stream flowing over rocks and/or gravel, and typically with a choppy surface.
Found on
http://www.encyclo.co.uk/visitor-contributions.php
Rif'fle noun [ CF. German
riffeln ,
riefeln , to groove. Confer
Rifle a gun.]
(Mining) 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, groove...
Found on
http://www.encyclo.co.uk/webster/R/81

Bar deposit found on the bed of streams. Associated with these deposits are pools.
Found on
http://www.physicalgeography.net/physgeoglos/r.html

Riffle is British slang for to manipulate the male sex organs so as to arouse them to a state of erection.
Found on
http://www.probertencyclopaedia.com/browse/ZR.HTM

[
n] - shuffling by splitting the pack and interweaving the two halves at their corners 2. [v] - shuffle (playing cards) by separating the deck into two parts and riffling with the thumbs so the cards intermix
Found on
http://www.webdictionary.co.uk/definition.php?query=riffle

British slang for to manipulate the male sex organs so as to arouse them to a state of erection.
Found on
https://www.easypacelearning.com/english-books/slang-words-a-to-z/375-slang
noun shuffling by splitting the pack and interweaving the two halves at their corners
Found on
https://www.encyclo.co.uk/local/20974

a small rapid in a river or stream.
Found on
https://www.encyclo.co.uk/local/22502
No exact match found.