glacial till

noun

an unstructured geological deposit composed of boulders, clay, gravel, sand, and silt that is transported by glacial drift.

Ask AI about this wordChatGPTClaudePerplexityGoogle AIGrok

Meanings

nounglacial till (plural glacial tills)

plural glacial tills

  1. geographyan unstructured geological deposit composed of boulders, clay, gravel, sand, and silt that is transported by glacial drift.

    The updated geotechnical data report submitted by Golder Associates to Capital Transit Partners, and then presented to the city, describes the valley as a natural trench in the bedrock filled with between 15 and 37 metres of loose fill, silty clay and "glacial till," or broken, weathered rock.

    2016 June 9, Alistair Steele, “Ottawa sinkhole struck in unstable 'rock valley' flagged by engineers”, in CBC News
Cite this entry
APA

glacial till. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/glacial%20till

MLA

“glacial till.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/glacial%20till. Accessed November 4, 2026.

Chicago

WatkinsX Dictionary, s.v. “glacial till,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/glacial%20till.

Source: glacial till on Wiktionary, CC BY-SA 4.0.