DCHP-1 Online

ripple † 

• 1 n. an obstruction in a watercourse, as a shallows, rapids, or sandbar.

  See also: riffle ((n.)) (def. 1a)  

• 2 n. a stretch of ruffled water caused by such an obstruction; the place where such an obstruction is.

  See also: riffle ((n.)) (def. 1b)