glacial erratic « Back to Glossary IndexLarge sediment (e.g. boulder) carried and then dropped by a glacier. Synonyms: erraticRelated Articles: 14 Glaciers5 Weathering, Erosion, and Sedimentary RocksGlossary: deranged pattern« Back to Glossary Index Author: Chris Associate Professor, Salt Lake Community College, Salt Lake City, Utah View all posts by Chris