noun
- low walls or barriers built out into the sea from a beach to prevent erosion and control the movement of sand and shingle
Usage: civil engineering; coastal management; plural of groyne
Examples
- The wooden groynes along the beach help prevent sand from washing away.
- Engineers installed new groynes to protect the coastline from erosion.
- The groynes created small pools of water at low tide.
- Local authorities built groynes every few hundred meters along the shore.
- The concrete groynes have successfully reduced beach erosion over the past decade.
- Children often play around the groynes when the tide is out.