noun
- Plural of diluvium; deposits of gravel, sand, clay, and boulders left by glacial meltwater or ancient floods.
Usage: geology; technical; chiefly historical
Examples
- The diluviums found in the valley provided evidence of ancient glacial activity.
- Geologists studied the composition of diluviums to understand the region's ice age history.
- The thick layers of diluviums contained fossils from the Pleistocene epoch.
- Diluviums are often distinguished from other sedimentary deposits by their mixed grain sizes.