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Clay, or potter's earth; sometimes pure clay, or alumina. See Clay.

Of the nature of clay; consisting of, or containing, argil or clay; clayey. Argillaceous sandstone (Geol.), a sandstone containing much clay. -- Argillaceous iron ore, the clay ironstone. -- Argillaceous schist or state. See Argillite.

Producing clay; -- applied to such earths as abound with argil. Kirwan.

Argillaceous schist or slate; clay slate. Its colors is bluish or blackish gray, sometimes greenish gray, brownish red, etc. -- Ar`gil*lit"ic, a.

Consisting of, or containing, clay and sand, as a soil.

Consisting of, or containing, clay and calcareous earth.

Containing clay and iron.

Argillaceous; clayey. Sir T. Browne.

consisting of, or containing, calcareous and argillaceous earths.

A distemper in geese, affecting the head.

Grandiloquent. [Obs.]

An apparatus for smoking tobacco. It has a long flexible tube, and the smoke is drawn through water.

almatia is so charged with bitumen that it may be cut like soap. -- Bituminous shale, an argillaceous shale impregnated with bitumen, often accompanying coal.

of a bluish color, of a slaty texture, and soiling the fingers when handled; a variety of argillaceous slate. -- By a long chalk, by a long way; by many degrees. [Slang] Lowell. -- Chalk drawing (Fine Arts), a drawing made with crayons. See Crayon. -- Chalk formation. See Cretaceous formation, under Cretaceous. --…

tempering clay; a pug mill. -- Clay pit, a pit where clay is dug. -- Clay slate (Min.), argillaceous schist; argillite. -- Fatty clays, clays having a greasy feel; they are chemical compounds of water, silica, and aluminia, as halloysite, bole, etc. -- Fire clay , a variety of clay, entirely free from lime, iron, o…

of stone cemented together by another mineral substance, either calcareous, siliceous, or argillaceous; pudding stone; -- opposed to agglomerate. See Breccia. A conglomerate, therefore, is simply gravel bound together by a cement. Lyell.

Capable of being disintegrated, or reduced to fragments or powder. Argillo-calcite is readily disintegrable by exposure. Kirwan.

An argillaceous sandstone, of a red color, and much seamed; -- found in India.

Clay slate; argillaceous schist.

An argillaceous rock which readily splits into thin plates; argillite; argillaceous schist.