argillaceous

Estimated CEFR level: C2 — Proficiency

Estimated from word frequency; not an official CEFR classification.

Definition

From Latin argillaceus, from argilla (“clay”), from Ancient Greek ἄργιλλος (árgillos, “white clay, potter's earth”), from ἀργός (argós, “white”).

The soil of this bottom is an argillaceous or a silicious loam, according as clay or sand happens to predominate in its formation. — A New Guide for Emigrants to the West, John Mason Peck
The arenaceous or argillaceous stuff in which they lie embedded is extremely hard, and strongly impregnated with iron, usually in the form of iron pyrites, which binds it together. — Impressions of South Africa, James Bryce, Viscount Bryce
There is a mountain called Guning Pandan, about eighty miles inland; from this branch out three rivers--one leads to Mompava, one to Batu Bulat near Tanjong Mora, and one to Landa; the whole intermediate area between the above rivers is of a firm yellow argillaceous schistus, or ferruginous quartz, interspersed with horn and vitreous ores, of a remarkable dark reddish color, abounding with the richest veins of gold, and equal if not superior to any mine extant. — The Expedition to Borneo of H.M.S. Dido: For the Suppression of Piracy, Henry, Sir Keppel

clayey

Type a word, a sentence, a book title, or a link to an English article. WordNet and the Classics answer.

Try

A library of classics · a vault of words · instant etymology & meaning