riffle definition by Webster's New World
- a shoal, reef, or shallow in a stream, producing a stretch of ruffled or choppy water
- a stretch of such water
- a ripple or the ripples of such water
- a contrivance, as of bars or slats, put across the bottom of a sluice to form grooves or open spaces for catching and holding particles of gold in mining
- any of the bars, slats, etc.
- any of the grooves or spaces
- the act or a manner of riffling cards
Origin: ; from uncertain or unknown; perhaps or akin to German riffel, groove, furrow ; from East Frisian akin to Old English rifelung, wrinkle ; from Indo-European base an unverified form rei-, to tear from source reap
- to form, become, or flow over or through, a riffle
- to leaf rapidly through (a book, etc.), as by letting the edges or corners of the pages slip lightly across the thumb
- to shuffle (playing cards) by holding part of the deck in each hand, raising the corners or edges slightly, and causing the cards to fall alternately together
Origin: < ? Ger riffeln, to form riffles, groove: see rifflethe
riffle definition by American Heritage Dictionary
- a. A rocky shoal or sandbar lying just below the surface of a waterway.b. A stretch of choppy water caused by such a shoal or sandbar; a rapid.
- a. In mining, the sectional stone or wood bottom lining of a sluice, arranged for trapping mineral particles, as of gold.b. A groove or block in such a lining.
- Games The act or an instance of shuffling cards.
- 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.
- To thumb through (the pages of a book, for example).
- Games To shuffle cards.
- To become choppy, as water.
Origin: Possibly blend of ripple1 and ruffle1.