overfalls


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overfalls

[′ō·vər‚fȯlz]
(oceanography)
Short, breaking waves occurring when a strong current passes over a shoal or other submarine obstruction or meets a contrary current or wind.
References in periodicals archive ?
Metaphorically reflecting in "Watch" on his three decades of marriage, he considers "Chartered years of bell-shaped lead-lines, / Riptides, overfalls, height and shallow, / So much unfathomed.
In the vicinity of Singapore the tidal streams can attain rates of some 6 knots with associated eddies and overfalls.
In an 18ft Drascombe lugger, the overfalls off the Great Orme and the Gower seemed a bit larger in proportion and our landfall at Rhyl harbour in the dark, I shall never forget