| 单词 | plunge basin |
| 释义 | > as lemmasplunge basin plunge basin n. Physical Geography a deep hollow or cavity excavated at the foot of a waterfall by the action of the falling water. ΘΚΠ the world > the earth > water > waterfall > [noun] > basin at foot of plunge basin1902 1902 20th Rep. State Geologist (N.Y. State Mus.) 126 These lakes.. occupy cataract or plunge basins, similar to that which would exist at the foot of Niagara falls if the Niagara river were to be withdrawn. 1939 A. K. Lobeck Geomorphol. vi. 195 There are several other plunge basins along the course of this former stream. 1993 Rider 1 Feb. 54 The 300-foot cliff over which once thundered a waterfall..that left ripples 30 feet high and plunge basins 200 yards wide. < as lemmas |
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