training wall

American  

noun

1. an artificial embankment or wall for directing the course of a stream.

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Etymology

Origin of training wall

First recorded in 1880–85

Example Sentences

Other improvements include a cushiony, kid-friendly surface at the playground, a high-tech soccer training wall, musical hopscotch that teaches children their numbers, picnic shelters, an amphitheater, pickleball and basketball courts, and a fountain.

From Washington Times

A training wall built into the side of the exhibit allows staff to do demonstrations and interactions with the bears for the public to watch.

From Washington Times

Below the Greben point a training wall 7 to 9 ft. high, 10 ft. at top and nearly 4 m. in length, has been built along the Servian shore in order to confine the river in a narrow channel.

From Project Gutenberg

At Jucz another similar channel had to be cut and a training wall built.

From Project Gutenberg