1. to remove or draw out (a substance) by the action of a percolating liquid
Usage: often used in chemistry and environmental science
2. to lose soluble matter when liquid passes through

Examples

• Rain will leach nutrients from the soil over time.
• The factory’s chemicals leached into the groundwater.
• Heavy irrigation can leach salt from agricultural fields.
• The old landfill continues to leach contaminants.
• Coffee grounds leach their flavor when hot water passes through them.
• Acid rain leaches minerals from rock formations.
• The contaminated soil will leach pollutants for years.