rip current definition by American Heritage Dictionary
nounThe American Heritage® Dictionary of the English Language, 4th edition Copyright © 2010 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
A strong, narrow surface current that flows rapidly away from the shore, returning the water carried landward by waves. Also called rip tide, tiderip.
rip current - Science Definition
A strong, narrow surface current that flows rapidly away from the shore. Rip currents form when excess water that has accumulated along a shore due to wind and waves rushes back suddenly to deeper waters. Also called rip tide.
When water that comes ashore is channeled back out to sea through a narrow passage, such as a break in a sandbar, the strength of the flow of water is concentrated and forms a rip current.