1. A layer in a body of water where salinity changes rapidly with depth.
Usage: oceanography; technical

Examples

• The halocline in the ocean separates the fresher surface water from the saltier deep water.
• Marine biologists study the halocline to understand how it affects fish migration patterns.
• A sharp halocline can prevent mixing between water layers of different salinities.
• The halocline is often found in estuaries where rivers meet the sea.
• Temperature and salinity changes create distinct boundaries like the halocline in stratified waters.