1 [usually in singular] an act or sound of riffling through something:just a riffle through the booksthe loudest sound was the constant riffle of paper as people looked at the agendas
2chiefly North American a rocky or shallow part of a stream or river where the water flows brokenly:the river’s sweeping riffles and deep pools provide a superb habitat for salmon
a patch of waves or ripples.
1 [no object] turn over something, especially the pages of a book, quickly and casually:he riffled through the pages [with object]:she opened a book and riffled the pages
(riffle through) search quickly through (something):she riffled through her leather handbag
[with object] disturb the surface of; ruffle:there was a slight breeze that riffled her hair
2 [with object] shuffle (playing cards) by flicking up and releasing the corners or sides of two piles of cards so that they intermingle and may be slid together to form a single pile:he riffled the deck of cards