Riffle \Rif"fle\ (r[i^]f"f'l), n. [CF. G. riffeln, riefeln, to
groove. Cf. Rifle a gun.]
1. (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, grooves, or steps in such
a trough. Also called ripple.
[1913 Webster]
2. A ripple in a stream or current of water; also, a place
where the water ripples, as on a shallow rapid. [Local, U.
S.]
The bass have left the cool depth beside the rock
and are on the riffle or just below it. --James A.
Henshall.
[Webster 1913 Suppl.]
Source: The Collaborative International Dictionary of English v.0.48
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69 Moby Thesaurus words for "riffle":
ball up, billow, bollix up, bore, breakers, chop, choppiness,
chopping sea, chute, cockle, comb, comber, confound, confuse,
dimple, dirty water, eagre, foul up, fret, fumble, garble,
gravity wave, ground swell, heave, heavy sea, heavy swell, jumble,
lift, lop, mix up, muck up, muddle, peak, pi, play hob with,
popple, rapid, rapids, riff, ripple, rise, roll, roller,
rough water, sault, scend, scramble, screw up, sea, send, shoot,
shuffle, snafu, snarl up, surf, surge, swell, tidal bore,
tidal wave, tide wave, trough, tsunami, tumble, undulation,
water wave, wave, wavelet, white horses, whitecaps
Source: Moby Thesaurus II by Grady Ward, 1.0
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