swale

swale  (swl)

n.

1. A low tract of land, especially when moist or marshy.

2. A long, narrow, usually shallow trough between ridges on a beach, running parallel to the coastline.

3. A shallow troughlike depression that carries water mainly during rainstorms or snow melts.

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[Perhaps from Middle English, shade, perhaps of Scandinavian origin; akin to Old Norse svalr, cool.]

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Swale timber planking, 1597.

Thesaurus

Noun

1.

swale - a low area (especially a marshy area between ridges) trough - a narrow depression (as in the earth or between ocean waves or in the ocean bed)