1. Instruments or devices used to measure the amount of water that percolates through soil and the solutes it carries, typically consisting of a container filled with soil through which water drains into a collection vessel.
Usage: technical; plural form of lysimeter; commonly used in soil science, hydrology, and environmental engineering

Examples

• Scientists installed lysimeters in the field to monitor groundwater contamination.
• The lysimeters collected drainage water samples for chemical analysis.
• Researchers used lysimeters to study how pesticides move through different soil types.
• Multiple lysimeters were placed at various depths to track water movement.
• The data from the lysimeters helped predict pollutant transport in the aquifer.