argillaceous

argillaceous — adjective

  • argillaceouspositive
  • more argillaceouscomparative
  • most argillaceoussuperlative

1. describes rock, soil, or sediment that contains or looks like clay — a technical

1.形容詞
釋義

describes rock, soil, or sediment that contains or looks like clay — a technical term used in geology and earth science when identifying the mineral makeup of the ground.

例句

The argillaceous soil in the valley was ideal for making traditional pottery.

collocation: argillaceous soil

Geologists identified the dark layer as argillaceous shale because of its fine-grained texture.

collocation: argillaceous shale / domain: geology

同義詞
  • clayey

    the everyday, non-technical equivalent

  • argillic

    a more specific technical term used in soil taxonomy (e.g., 'argillic horizon')

反義詞
  • arenaceous

    technical opposite meaning 'sandy' or 'sand-rich'

  • sandy

    common opposite; soil composed mostly of sand rather than clay

用法筆記

Almost exclusively used in technical writing about geology, soil science, or archaeology. In everyday conversation, speakers use 'clayey' or 'clay-rich' instead.

常見錯誤

❌The earth in the garden is argillaceous.
✅The earth in the garden is clayey.
💡'Argillaceous' sounds unnatural in casual speech; reserve it for formal or scientific contexts.