hydraulic current

hydraulic current

[hī′drȯ·lik ′kə·rənt]
(oceanography)
A current in a channel, due to a difference in the water level at the two ends.
References in periodicals archive ?
The pair fought to stay afloat for 30 minutes against a hydraulic current from the dam.
Farley was near the dam with a group of friends swimming, who also got swept over the dam because of the hydraulic current. Farley worked to get his friends to the river bed when he saw Capps, whose raft had capsized, and jumped in to help her.