underclay

U1N1D2E1R1C3L1A1Y4

noun

A stratum of clay lying beneath a coal bed.

Scrabble 15
Ask AI about this wordChatGPTClaudePerplexityGoogle AIGrok

Meanings

noununderclay (plural underclays)

plural underclays

  1. geographyA stratum of clay lying beneath a coal bed.

Origin

From under- + clay.

Full word history & related roots →
Cite this entry
APA

underclay. (n.d.). In WatkinsX Dictionary. Retrieved November 3, 2026, from https://dictionary.watkinsx.com/word/underclay

MLA

“underclay.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/underclay. Accessed November 3, 2026.

Chicago

WatkinsX Dictionary, s.v. “underclay,” accessed November 3, 2026, https://dictionary.watkinsx.com/word/underclay.

Source: underclay on Wiktionary, CC BY-SA 4.0.